Motorola c18 Developer's Manual page 48

Connector Pin Assignments
Pin # Signal Name
14 USB_D-
15 UART1_CTS
16 WAKE_IN_N
17 UART1_DCD
18 PCM_DIN_GPIO1
19 UART1_DTR
20 PCM_DOUT_GPIO2
21 UART1_TXD
22 PCM_CLK_GPIO3
23 UART1_RI
24 PCM_FS_GPIO4
25 RESOUT_N
26 WAKE_OUT_N
27 BL_SINK
28 KEYSENSE0_N
29 GPIO5
30 KEYSENSE1_N
40
Table 16. 70-pin Connector Pinout (Continued)
Signal Level [V]
3.3
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
I/O
I/O USB D-
O
Signal used by the external equipment
I – PU (for example, a terminal) to wake up the
c18 from Sleep mode.
O – PD
I or General-purpose I/O with internal
I/O – PU pull-up.
5V tolerant. Should be pulled down
I – (PD)
externally (100 K) when not used.
O or General-purpose I/O with internal
I/O – PU pull-up.
5V tolerant (from PC to OEM). Should
I – (PD) be pulled down externally (100 K) when
not used.
General-purpose I/O with internal
I/O – PU
pull-up.
O – PD
General-purpose I/O with internal
I/O – PU
pull-up.
Reset out (from MSM5100). Some
O devices external to the c18 may require
a reset signal (for example, an LCD).
Signal used to wake up the external
O – PD
equipment (for example, a terminal).
LCD backlight sink signal that is
O – Sink
capable of a sink up to at least 36 mA.
Active-low, level-sensitive interrupt
I – PU
input with internal pull-up (keypad).
General-purpose I/O with internal
I/O – PU
pull-up in user configuration.
Active-low, level-sensitive interrupt
I – PU
input with internal pull-up (keypad).
Description
98-08901C63-A