Motorola ASTRO XTSTM 4000 Detailed Service Manual page 114

7-14
U1401
Description
Pin No.
H2 SPI_MISOB
C7 ABACUS3_CS
C6 AD_CS
C5 EEPROM_SEL
B4 ADTRIG
D5 AUDIO_SW
K7 UNI_SEL
K3 Not Connect
K8 MAKO_CE
J4 D_REG_SEL
J3 D_CS
H3 SCKB
H4 SPI_MOSIB
C8 SCKA
D6 MOSIA
M21 UCM_SS_BRAVO
M22 OPT_SEL1_OUT
R21 CODEC_RX
C13 RX_SSI_FSYNC
D13 RX_SSI_CLK
G12 TX_SSI_DATA
B21 BSY_OUT_CTS
F20 UTXD2
G20 USB_SUSP
H21 BOOT_NORM
H20 AUDIO_JACK_INT
J21 UCTS1_USB_SPEED
T16 UTXD1_USB_VPO
Y22 CKO
R16 USB_VMO
May 28, 2008
Table 7-7. U1401 Patriot MCU/DSP IC Pinouts (Continued)
UTXD1_USB_VPO (TP)
Troubleshooting Tables: List of Board and IC Signals
To/From
Pin C6 of U1304 SPI B Data Out
Pin 25 of U500
R1120
No Connect
Pin B11 of U1304
C1216
R1118
No Connect
R1334
No Connect
No Connect
Pin E6 of U1304
Pin B6 of U1304
R1115
Pin 2 of U1405
R1101
C1221
R1338 RX Audio from
R1111
R1109
R1113
Pin E11 of U1304
Pin E9 of U1304
No Connect
R1342
R9998
Pin B10 of U1304
*
*
CKO (TP)
Pin D8 of U1304
Accessible
Comment on
Mainboard?
No
Yes
Yes
No
No
Yes
Yes
No
Yes
No
No
SPI B Clock No
SPI B Data No
SPI A Clock Yes
SPI A Data Yes
Yes
Yes
Yes
DSP
Yes
1.204 MHz Yes
Yes
Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
6871620L01-C