Datasheet
IBM PowerPC 750GX RISC Microprocessor
DD1.X
4.3 Microprocessor Ball Placement
Figure 4-4. PowerPC 750GX Microprocessor Ball Placement
A6
A8
GND
A10
A3
A5
A2
A4
A0 DH31 DH25 DH26 DP2 DH22 DH19 DH18 DH16 DH15 DH14 DP0
A1 DH29 DP3 DH28 DH23 DH24 DH21 DH20 DP1 DH17 DH11 DH8
DH9
DH6
DH10
DH5
DH4
GND
DH0
DH2
DH3
20
19
18
17
16
15
14
A13
A11
A12
A14
TT3
OVDD GND
OVDD GND
DH30 DH27
GND OVDD
VDD VDD
GND GND
OVDD OVDD
GND OVDD
DH12 DH13
OVDD GND
GND
DH1
OVDD
PLL_CFG0
TT1 OVDD
A9
OVDD PLL_CFG1 PLL_CFG2
A15 GND AP0
TS
A7
DH7 PLL_CFG3 GND
SYSCLK
A2VDD
A1VDD
AGND
VDD
VDD
VDD
VDD
PLL_RNG0
TSIZ0 TT2 OVDD TT0 GND
OVDD
GND GND
OVDD
GND PLL_RNG1 OVDD PLL_CFG4
LLSD_
MODE
AP2
TA
TT4 GND AP1 VDD
GND GND VDD VDD VDD VDD GND GND
VDD
GND L2_TSTCLK L1_TSTCLK
13
TSIZ1
GND GND
GND GND
MCP
CHECKSTOP
HRESET
CKSTP
INT
12
11
10
9
TBST TSIZ2 VDD GND OVDD GND
DBDIS A16 VDD GND OVDD GND
VDD VDD
GND OVDD
GND OVDD
VDD
GND
GND
VDD TLBISYNC
GND GND
VDD
SMI
A18
AACK AP3 GND A21 VDD
A20 A19 OVDD A24 GND
DBWO A23
A17
VDD
GND VDD
VDD GND
BVSEL
TBEN
GND GND VDD VDD VDD VDD GND GND
VDD
QREQ
DBB
GND
QACK
8
OVDD
GND GND
OVDD
GND
OVDD ARTRY
SRESET
ABB
7
VDD
VDD
TEA
6
CLK_O
UT
A22
A26 GND A25 A31
GND OVDD
OVDD OVDD
OVDD GND
WT
GND
TDO
DBG
5
A28
A29
DL0
DL1
A
A27 OVDD
DL3
DP5 DL13
GND GND
DL23 DL26
CI
OVDD
BG
DRTRY
GND
GBL
RSRV
BR
4
3
2
1
A30
OVDD GND
OVDD GND
VDD VDD
GND OVDD
GND
OVDD
DL30
TRST
U
GND DL2 DL6 DL5 DL11 DL10 DL12 DL16 DL15 DL19 DL20 DL22 DL27 DL28 TCK
DP4 DL4 DL8 DL7 DL9 DL14 DP6 DL18 DL17 DL21 DP7 DL24 DL25 DL29 DL31
TDI
TMS
V
BLANK
BLANK
Y
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
W
Note: This view is looking down from above the 750GX placed and soldered on the system board.
Dimensions and Signal Assignments
Page 36 of 73
750GX_ds_body.fm SA14-2765-02
September 2, 2005
IBM [ IBM ]
