Motorola XTS 2500 Service Manual page 625

900MHz Troubleshooting Tables: Tables
U401
Pin Number
P11
M11
L15
H16
F14
G14
E13
B13
K15
D9
C8
B5
C2
C1
H3
K15
T8
H15
C9
B6
E2
D2
E3
E4
B1
F4
F5
C7
C6
G10
6816985H01-F
Table 8.5-5. Patriot MCU/DSP (U800) Pinout (Continued)
Description
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
ABACUS_CS*
UNIVERSAL_SPI_CS*
NOT USED
MAKO_CE
SCKB
NOT USED
NOT USED
SPI_MOSI_B
SPI_CLK_A
MOSIA
NOT USED
To/From Comment
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
U401, pin 25 Active Low
C222 Active Low
Active High
B_CLK SPI B Clock
BMOSI SPI B Data
(VOCON)
SCKA SPI A Clock
R802 SPI A Data
(RF Devices)
8.5-11
Accessible on
Main Board?
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
No
No
Yes
No
No
Yes
Yes
Yes
No
February 14, 2012