
Lucent Technologies Inc.
15
Advance Data Sheet
December 2000
Phone-On-A-Chip
IP Solution DSP
T8301 Internet Protocol Telephone
4 DSP1600 Core
(continued)
4.10 Y Space Memory Map
The table below shows the Y space memory map. This is the area can be addressed via the DSP1627’s R0, R1,
R2, and R3 registers, and also by direct (Y-based) addressing.
Table 6. Data Memory Area: I/O, Register, and Memory
Address
R/W
DSP CS
Function
Description
Size
(words)
6K
1
0x0:0x17FF
0x4000
R/W
R/W
Internal
I/O
Internal RAM
aioc_reg
—
Analog audio I/O control register,
see Table 11.
Audio codec test register 1.
Audio codec test register 2.
Audio codec clock control register,
see Table 12.
Tone ringer control register, see Table 8.
DMA control register, see Table 14.
Audio in DMA starting address register,
see Table 15.
Audio in DMA transfer count registers,
see Table 16.
Audio in DMA address increment registers,
see Table 17.
Audio in DMA transfer count decrement regis-
ter, see Table 18.
Handset DMA starting address register,
see Table 15.
Handset DMA transfer count register,
see Table 16.
Handset DMA address increment register,
(see Table 17).
Handset DMA transfer count decrement
register, see Table 18.
Speaker DMA starting address register,
see Table 15.
Speaker DMA transfer count register,
see Table 16.
Speaker DMA address increment register,
see Table 17.
Speaker DMA transfer count decrement
register, see Table 18.
config_compander Compander configuration register,
see Table 19.
write_companded Write companded value register, see Table 21.
read_linear
Read linear value register, see Table 22.
write_linear
Write linear value register, see Table 20.
0x4001
0x4002
0x4003
R/W
R/W
R/W
I/O
I/O
I/O
act1_reg
act2_reg
aclkc_reg
1
1
1
0x4008
0x4010
0x4014
R/W
R/W
R/W
I/O
I/O
I/O
trc_reg
dmac_reg
AINsetadr_reg
1
1
1
0x4015
R/W
I/O
AINsetcnt_reg
1
0x4016
R/W
I/O
AINadrinc_reg
1
0x4017
R/W
I/O
AINcntdec_reg
1
0x4018
R/W
I/O
HNDsetadr_reg
1
0x4019
R/W
I/O
HNDsetcnt_reg
1
0x401A
R/W
I/O
HNDadrinc_reg
1
Ox401B
R/W
I/O
HNDcntdec_reg
1
0x401C
R/W
I/O
SPKsetadr_reg
1
0x401D
R/W
I/O
SPKsetcnt_reg
1
0x401E
R/W
I/O
SPKadrinc_reg
1
0x401F
R/W
I/O
SPKcntdec_reg
1
0x4040
R/W
I/O
1
0x4041
0x4041
0x4042
W
R
W
I/O
I/O
I/O
1
1
1