Motorola XTS 2500 Service Manual page 541

VHF Troubleshooting Tables: Tables
U800 Pin
Number
J9
L8
M8
N8
K8
L7
T7
R7
R3
T3
N4
P4
R4
J8
T4
N5
P5
R5
T5
R6
T6
M7
N7
P7
N11
T11
R14
N12
T14
R11
R15
6816985H01-F
Table 8.1-5. Patriot MCU/DSP (U800) Pinout (Continued)
Description
ADDRESS 16
ADDRESS 17
ADDRESS 18
ADDRESS 19
ADDRESS 20
ADDRESS 21
ADDRESS 22
ADDRESS 23
DATA 15
DATA 14
DATA 13
DATA 12
DATA 11
DATA 10
DATA 9
DATA 8
DATA 7
DATA 6
DATA 5
DATA 4
DATA 3
DATA 2
DATA 1
DATA 0
R_W
NOT USED
NOT USED
CS3*
CS2
NOT USED
CS0
To/From Comment
R814
R644
R643
R642
R641
R640
R639
R638
R637
TP_CS0 Active Low
8.1-15
Accessible on
Main Board?
No
No
No
No
No
No
No
Yes
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
Yes
February 14, 2012