参数资料
型号: PowerPC 750CX
厂商: IBM Microeletronics
英文描述: 32-Bit Reduced Instruction Set Computer (RISC) Microprocessors(32位精简指令集微处理器)
中文描述: 32位精简指令集计算机(RISC)微处理器(32位精简指令集微处理器)
文件页数: 26/44页
文件大小: 562K
代理商: POWERPC 750CX
PowerPC 750CX RISC Microprocessor Datasheet
Page 26
Version 1.1
November 13, 2000
Table 10: Signal Listing for the 256 PBGA Package
Signal Name
Pin Count
Active
I/O
Notes
A0-A31
32
High
I/O
AACK
1
Low
Input
ARTRY
1
Low
I/O
BG
1
Low
Input
BR
1
Low
Output
CI
1
Low
Output
CKSTP_IN
1
Low
Input
CKSTP_OUT
2
1
Low
Output
DBG
1
Low
Input
DH0-DH31
32
High
I/O
DL0-DL31
32
High
I/O
GBL
1
Low
I/O
HRESET
1
Low
Input
INT
1
Low
Input
L1_TSTCLK
1
1
High
Input
DBWO/L2_TSTCLK
1,2,3
1
High
Input
LSSD_MODE
1
1
Low
Input
MCP
1
Low
Input
PLL_CFG[0-3]
4
High
Input
QACK
2
1
Low
Input
OPTIONAL: 64/ 32-Bit Data Bus mode select.
This function will be set when HRESET transitions
(low to high). QACK: low = 64-bit mode, high =32-bit
mode.
QREQ
1
Low
Output
SRESET
1
Low
Input
SYSCLK
1
Input
TA
1
Low
Input
TBST
1
Low
I/O
TCK
1
High
Input
TDI
1
High
Input
TDO
1
High
Output
TEA
1
Low
Input
TMS
1
High
Input
TRST
1
Low
Input
Note:
1. These are test signals for factory use only and must be pulled up to OV
DD
for normal machine operation.
2. The CKSTP_OUT signal in test mode allows viewing the PowerPC 750CX RISC Microprocessor internal clocks.
The QACK signal allows selection of 32-bit mode.(See the PowerPC 750CX RISC Microprocessor User’s Manualfor more information.)
3. L2-TSTCLK in normal mode is
DBWO
, for details, see Section 7.9.4 on Page 39.
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