Motorola ASTRO XTS 5000 - Page 168

6881094C31-E November 16, 2006
Troubleshooting Tables: List of Board and IC Signals 7-25
B4 IGN_X NC No
B5 BBP_SYNC R437 48KHz at Logic Level Yes
B6 SPI_DI U701 pin 3 SPI Data In Yes
B7 VC_TX NC No
B8 USB1_OE
TP_USB_TX
ENAB
Output Enable used for USB Mode,
Active Low Input Yes
B9 USB2_DAT_VP
TP_USB_VP
1 Rx Vplus Output at 3.3V Logic Level Yes
B10 CTS_X
TP_UCTS1_
USB_SPEED
*
Active Low Signal Operates at Logic
Level Yes
B11 AD_TRIG U401 pin F13
Active High Trigger to Start A/D,
Logic Level No
B12 OPTION_INTX NC No
B13 VBUS_SUPPLY NC No
C1 XTAL32_IN Y501 pin 2 32.768KHz Oscillator Yes
C2 VSAVE R593 2.5Vdc Yes
C3 PGLDO2 GND Yes
C4 SCAN_EN GND Yes
C5 RESETX
TP_MAKO_R
ESET
Active Low Asserted Reset,
Operates at Logic Level Yes
C6 SPI_DO
TP_SPI_MO
SIB
Digital Output of SPI data to
Microprocessor, Operates at Logic
Level Yes
C7 BOOT_NORM_X R583
Selects Bootstrap Mode or Normal,
Operates at Logic Level Yes
C8 USB1_DAT_TXD
TP_UTXD1_
USB_VPO
Digital Input for USB or RS232
Operates at Logic Level Yes
C9
USB2_SE0_VM_R
XD
TP_URXD1_
USB_VMI
Output for Vminus or Output for
RS232 Data Yes
C10 USB_INTX NC No
Table 7-10. U501 MAKO IC Pinouts (for kit NNTN5567)
U301
Pin
No.
Description To/From Comment
Accessible
on Vococn