Table of Contents
Tables
Page
10
Agere Systems Inc.
T8302 Internet Protocol Telephone
Advanced RISC Machine (
ARM
)
Data Sheet
July 2001
Table 1. PBGA-272 Package .................................................................................................................................18
Table 2.
ARM
Processor Memory and I/O Map ......................................................................................................28
Table 3. Reset/Clock Management Controller Signals ...........................................................................................30
Table 4. Reset/Clock Controller Register Map .......................................................................................................35
Table 5. Pause Register .........................................................................................................................................36
Table 6. Version ID Register 0xE000 0010 ............................................................................................................36
Table 7. Clock Management Register .....................................................................................................................37
Table 8. Clock Status Register................................................................................................................................37
Table 9. System Clock Source Encoding ...............................................................................................................38
Table 10. Clock Control Register ............................................................................................................................38
Table 11. Soft Reset Register ................................................................................................................................39
Table 12. PLL Control Register ..............................................................................................................................39
Table 13. Reset Status (Control/Clear) Registers ..................................................................................................40
Table 14. Reset Peripheral Control (Read, Clear, Set) Registers ..........................................................................41
Table 15. RTC External Divider Register ...............................................................................................................42
Table 16. RTC Clock Prescale Registers ...............................................................................................................42
Table 17. RTC Control Register .............................................................................................................................43
Table 18. RTC Seconds Alarm Register ................................................................................................................44
Table 19. RTC Seconds Count Register ................................................................................................................44
Table 20. RTC Divider Register ..............................................................................................................................45
Table 21. RTC Interrupt Status Register ................................................................................................................45
Table 22. RTC Interrupt Enable Register ...............................................................................................................45
Table 23. Interrupt Registers ..................................................................................................................................48
Table 24. Interrupt Request Signals (IRQ) .............................................................................................................49
Table 25. Programmable Interrupt Controller Register Map ...................................................................................50
Table 26. Interrupt Request Status Register IRSR .................................................................................................51
Table 27. Interrupt Request Enable Registers IRER (Set = IRESR, Clear = IRECR) ............................................51
Table 28. Interrupt Request Soft Register IRQSR ..................................................................................................52
Table 29. Interrupt Priority Control Registers IPCR[15:1] .......................................................................................52
Table 30. Interrupt In-Service Registers ISR (ISRI, ISRF) .....................................................................................53
Table 31. Interrupt Source Encoding for Interrupt In-Service Registers .................................................................53
Table 32. Interrupt Request Source Clear Register IRQESCR ..............................................................................54
Table 33. Interrupt Priority Enable Registers IPER (Set = IPESR, Clear = IPECR) ...............................................54
Table 34. External Interrupt Control Registers .......................................................................................................55
Table 35. DMA Controller Register Map .................................................................................................................61
Table 36. DMA Control Registers for Channels [0:3] .............................................................................................62
Table 37. DMA Source Address Registers for Channels [0:3] ...............................................................................64
Table 38. DMA Preload Destination Start Address Registers for DMA Channels [0:3] ..........................................64
Table 39. DMA Destination Address Registers for DMA Channels [0:3] ................................................................64
Table 40. DMA Preload Transfer Count Registers for Channels [0:3] ....................................................................65
Table 41. DMA Transfer Count Registers for Channels [0:3] .................................................................................65
Table 42. DMA Burst and Hold Count Registers for Channel [0:3] ........................................................................66
Table 43. DMA Status Register ..............................................................................................................................66
Table 44. DMA Interrupt Register ...........................................................................................................................68
Table 45. DMA Interrupt Enable Register ...............................................................................................................69
Table 46. Timer Controller Register Map ...............................................................................................................73
Table 47. Count Rate Register ...............................................................................................................................74
Table 48. Encoding of Interval Timer and Watchdog Timer Count Rates ..............................................................74
Table 49. WT Count Register .................................................................................................................................75
Table 50. Timer Status Register .............................................................................................................................75