參數(shù)資料
型號: IBM25PPC750CXEJQ4022T
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 466 MHz, RISC PROCESSOR, PBGA256
封裝: 27 X 27 MM, LEAD FREE, PLASTIC, BGA-256
文件頁數(shù): 24/44頁
文件大?。?/td> 416K
代理商: IBM25PPC750CXEJQ4022T
Data Sheet
PowerPC 750CXe RISC Microprocessor
Preliminary
PowerPC 750CXe Dimension and Physical Signal Assignments
Page 22 of 36
750cxe_DD3.1_Dev_3_gen_mkt.fm.1.5
April 8, 2004
Table 5-1. 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_OUT2
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_TSTCLK1
1
High
Input
DBWO/L2_TSTCLK1,2,3
1
High
Input
LSSD_MODE1
1
Low
Input
MCP
1
Low
Input
PLL_CFG[0-3]
4
High
Input
QACK2
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
Notes:
1. These are test signals for factory use only and must be pulled up to OVDD for normal machine operation.
2. The CKSTP_OUT signal in test mode allows viewing the PowerPC 750CXe internal clocks.
The QACK signal allows selection of 32-bit mode.(See the PowerPC 750CXe User’s Manual for more information.)
3. L2-TSTCLK in normal mode is
DBWO, for details, see Section 6.7.4 on Page 34.
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