參數(shù)資料
型號(hào): MSC8101M1375C
廠商: MOTOROLA INC
元件分類: 數(shù)字信號(hào)處理
英文描述: Network Digital Signal Processor
中文描述: 64-BIT, 68.75 MHz, OTHER DSP, PBGA332
封裝: 17 X 17 MM, LIDDED FLIP CHIP, PLASTIC, BGA-332
文件頁(yè)數(shù): 13/104頁(yè)
文件大?。?/td> 877K
代理商: MSC8101M1375C
System Bus, HDI16, and Interrupt Signals
MSC8101 Technical Data, Rev. 16
Freescale Semiconductor
1-9
D[32–47]
HD[0–15]
Input/Output
Input/Output
Data Bus Bits 32–47
In write transactions the bus master drives the valid data on this bus. In read transactions the slave
drives the valid data on this bus.
Host Data
2
When the HDI16 interface is enabled, these signals are lines 0-15 of the bidirectional tri-state data
bus.
D[48–51]
HA[0–3]
Input/Output
Input
Data Bus Bits 48–51
In write transactions the bus master drives the valid data on these pins. In read transactions the
slave drives the valid data on these pins.
Host Address Line 0–3
3
When the HDI16 interface bus is enabled, these lines address internal host registers.
D52
HCS1
Input/Output
Input
Data Bus Bit 52
In write transactions the bus master drives the valid data on this pin. In read transactions the slave
drives the valid data on this pin.
Host Chip Select
3
When the HDI16 interface is enabled, this is one of the two chip-select pins. The HDI16 chip select
is a logical OR of HCS1 and HCS2.
D53
HRW
HRD/HRD
Input/Output
Input
Input
Data Bus Bit 53
In write transactions the bus master drives the valid data on this pin. In read transactions the slave
drives the valid data on this pin.
Host Read Write Select
3
When the HDI16 interface is enabled in Single Strobe mode, this is the read/write input (HRW).
Host Read Strobe
3
When the HDI16 is programmed to interface with a double data strobe host bus, this pin is the read
data strobe Schmitt trigger input (HRD/HRD). The polarity of the data strobe is programmable.
D54
HDS/HDS
HWR/HWR
Input/Output
Input
Input
Data Bus Bit 54
In write transactions the bus master drives the valid data on this pin. In read transactions the slave
drives the valid data on this pin.
Host Data Strobe
3
When the HDI16 is programmed to interface with a single data strobe host bus, this pin is the data
strobe Schmitt trigger input (HDS/HDS). The polarity of the data strobe is programmable.
Host Write Data Strobe
3
When the HDI16 is programmed to interface with a double data strobe host bus, this pin is the write
data strobe Schmitt trigger input (HWR/HWR). The polarity of the data strobe is programmable.
D55
HREQ/HREQ
HTRQ/HTRQ
Input/Output
Output
Output
Data Bus Bit 55
In write transactions the bus master drives the valid data on this pin. In read transactions the slave
drives the valid data on this pin.
Host Request
3
When the HDI16 is programmed to interface with a single host request host bus, this pin is the host
request output (HREQ/HREQ). The polarity of the host request is programmable. The host request
may be programmed as a driven or open-drain output.
Transmit Host Request
3
When the HDI16 is programmed to interface with a double host request host bus, this pin is the
transmit host request output (HTRQ/HTRQ). The signal can be programmed as driven or open
drain. The polarity of the host request is programmable.
Table 1-5.
System Bus, HDI16, and Interrupt Signals (Continued)
Signal
Data Flow
Description
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