Motorola XTS 2500 Service Manual page 560

8.2-12
U401
Pin Number
G16
J11
A12
A11
E9
C15
F12
D15
E14
D16
G12
K11
K14
K13
D5
H14
K4
F9
J2
A6
J7
G13
J1
A13
M6
R1
N3
M5
P2
February 14, 2012
Table 8.2-5. Patriot MCU/DSP (U800) Pinout (Continued)
Description
NOT USED
CODEC_RX
RX_SSI_FSYNC
RX_SSI_CLK
TX_SSI_DATA
BSY_OUT_CTS*
UTXD2
NOT USED
BOOT_NORM*
RS232_USB*
UCTS1_USB_SPEED*
UTXD1_USB_VPO
USB_VMO
USB_TX_EN
8 KHZ_INT
BL_EN
LV_DETECT
NOT USED
SC_FILT_EN
16_8MHZ
GATED_32_KHZ
NOT USED
MOD
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
UHF1 Troubleshooting Tables: Tables
To/From Comment
R775 DSP to MAKO
Rx Audio Data
SSI_FS 20 KHz pulse
SSI_CK 1.2 MHz
Data From
DSP to A/D
SYNC 8 KHz Pulse
J601, pin 43
D511, pin 1 3.0V
FL200, pin 7
C726 16.8 MHz
U712, pin 4 32.768 KHz
R634 Bootstrap
mode > 2.7V
Accessible on
Main Board?
No
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
R406
Yes
Yes
No
No
Yes
Yes
No
Yes
No
No
No
No
No
No
6816985H01-F