February 14, 2012 6816985H01-F
8.1-12 VHF Troubleshooting Tables: Tables
G16 NOT USED No
J11 CODEC_RX R775 DSP to MAKO
Rx Audio Data
Yes
A12 RX_SSI_FSYNC SSI_FS 20 KHz pulse Yes
A11 RX_SSI_CLK SSI_CK 1.2 MHz Yes
E9 TX_SSI_DATA U201, pin 4 Data From
DSP to A/D
Yes
C15 BSY_OUT_CTS* No
F12 UTXD2 No
D15 NOT USED No
E14 BOOT_NORM* No
D16 RS232_USB* No
G12 UCTS1_USB_SPEED* No
K11 UTXD1_USB_VPO No
K14 USB_VMO No
K13 USB_TX_EN No
D5 8 KHZ_INT SYNC 8 KHz Pulse R406
H14 BL_EN J601, pin 43 Yes
K4 LV_DETECT D511, pin 1 3.0V Yes
F9 NOT USED No
J2 SC_FILT_EN FL200, pin 7 No
A6 16_8MHZ C726 16.8 MHz Yes
J7 GATED_32_KHZ U712, pin 4 32.768 KHz Yes
G13 NOT USED No
J1 MOD R634 Bootstrap
mode > 2.7V
Yes
A13 NOT USED No
M6 NOT USED No
R1 NOT USED No
N3 NOT USED No
M5 NOT USED No
P2 NOT USED No
Table 8.1-5. Patriot MCU/DSP (U800) Pinout (Continued)
U800 Pin
Number
Description To/From Comment
Accessible on
Main Board?
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