Motorola ASTRO XTS 5000 Detailed Service Manual page 124

8-18
U301
Pin No.
C5
E4
C1
D1
B1
C3
C2
D2
E3
B2
B3
A2
A1
A3
F5
H4
H1
G6
G5
A6
B6
A5
B7
B4
D4
H2
D6
B8
April 15, 2002
Table 8-7. U301 Flipper IC Pinouts (Continued)
Description
BSY_OUT_CTS
UCTS1_USB_SPEED*
USB_TXENAB
UTXD1_USP_VPO
USB_VMO
URTS1_XRXD
USB_VPI
URXD1_USB_VMI
USB_SUSP
SCKB
SPI_MOSIB
SPI_MISOB
FLPR_CS*
UART_INT*
GCAP_RESET_X
TEST_MODE1
TES_MODE2
OUT_DIS
SCAN_EN
XTAL32_IN
XTAL32_OUT
REF32_OUT
BYPASS_32
BP_SEN_X
WD_OUT
ONE_WIRE_OPT
SB96D_BDO_KF_5V
LH_BUSY
Troubleshooting Tables: Board and IC Signals
To/From Comment
SCKB SPI B Clock
MOSIB SPI Data Write
to Flipper IC
MISOA SPI Data Read
from Flipper IC
C310
GROUND
GROUND
GROUND
GROUND
R316 32.768 kHz
Square Wave
GROUND
R510 0 V
R528 Watchdog Int
to GCAP II
D306 pin 3
NC
D307 pin 3 Longhorn
Busy
Accessible
on Vocon?
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
68P81094C31-O