參數(shù)資料
型號(hào)： MSC8102M4000
廠商： MOTOROLA INC
元件分類： 數(shù)字信號(hào)處理
英文描述： 32-BIT, 75 MHz, OTHER DSP, CBGA431
封裝： 20 X 20 MM, FLIP CHIP, CERAMIC, BGA-431
文件頁(yè)數(shù)： 10/96頁(yè)
文件大?。?/td> 1557K
代理商： MSC8102M4000
1-10
Direct Slave Interface, System Bus, and Interrupt Signals
IRQ3
DP3
DREQ2
EXT_BR3
Input
Input/
Output
Input
Interrupt Request 3
One of fifteen external lines that can request a service routine, via the internal interrupt
controller, from the SC140 core.
System Bus Data Parity 3
The agent that drives the data bus also drives the data parity signals. The value driven on
the data parity 3 pin should give odd parity (odd number of ones) on the group of signals
that includes data parity 3 and D[24–31].
DMA Request 2
Used by an external peripheral to request DMA service.
External Bus Request 3
2
An external master should assert this pin to request bus ownership from the internal
arbiter.
IRQ4
DP4
DACK3
EXT_DBG3
Input
Input/
Output
Interrupt Request 4
One of fifteen external lines that can request a service routine, via the internal interrupt
controller, from the SC140 core.
System Bus Data Parity 4
The agent that drives the data bus also drives the data parity signals. The value driven on
the data parity 4 pin should give odd parity (odd number of ones) on the group of signals
that includes data parity 4 and D[32–39].
DMA Acknowledge 3
The DMA drives this output to acknowledge the DMA transaction on the bus.
External Data Bus Grant 32
The MSC8102 asserts this pin to grant data bus ownership to an external bus master.
IRQ5
DP5
DACK4
EXT_BG3
Input
Input/
Output
Interrupt Request 5
One of fifteen external lines that can request a service routine, via the internal interrupt
controller, from the SC140 core.
System Bus Data Parity 5
The agent that drives the data bus also drives the data parity signals. The value driven on
the data parity 5 pin should give odd parity (odd number of ones) on the group of signals
that includes data parity 5 and D[40–47].
DMA Acknowledge 4
The DMA drives this output to acknowledge the DMA transaction on the bus.
External Bus Grant 32
The MSC8102 asserts this pin to grant bus ownership to an external bus.
IRQ6
DP6
DREQ3
Input
Input/
Output
Input
Interrupt Request 6
One of fifteen external lines that can request a service routine, via the internal interrupt
controller, from the SC140 core.
System Bus Data Parity 6
The agent that drives the data bus also drives the data parity signals. The value driven on
the data parity 6 pin should give odd parity (odd number of ones) on the group of signals
that includes data parity 6 and D[48–55].
DMA Request 3
Used by an external peripheral to request DMA service.
Table 1-5. DSI, System Bus, and Interrupt Signals (Continued)
Signal Name
Type
Description
相關(guān)PDF資料
PDF描述
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