Specifications

Wireless CPU
®
Q24 Series
Interfaces
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prior written agreement.
WM_PRJ_Q24NG_PTS_001-004
January 16, 2007
3.9 General Purpose Input/Output
The Wireless CPU
®
Q24 Series provide:
• 3 General Purpose I/O,
• 4 General Purpose Output,
• 1 General Purpose Input.
They are used to control any external devices such as an LCD or a Keyboard
backlight.
Pin description
Signal Pin I/O I/O type Reset state Description
Multiplexed
with
GPIO0 24 I/O
CMOS / CMOS 2X
(C1)
High
impedance
General Purpose
I/O
CT106/CTS2
GPIO1 52 I/O
CMOS / CMOS 2X
(C1)
High
impedance
General Purpose
O
FLASH LED
GPIO4 53 I/O
CMOS / CMOS 2X
(C1)
High
impedance
General Purpose
I/O
GPIO5 35 I/O
CMOS / CMOS 2X
(C1)
High
impedance
General Purpose
I/O
CT105/RTS2
GPO0 26 O CMOS 3X (C3) 2V8
General Purpose
O
SPI_AUX
GPO1 22 O CMOS 3X (C3) 0V
General Purpose
O
GPO2 20 O CMOS 3X (C3) 2V8
General Purpose
O
CT104/RXD2
GPO3 28 O CMOS 3X (C3)
2V8
General Purpose
O
SPI_EN
GPI 18 I CMOS (C4)
Pull down to
0V
General Purpose
I
CT103/TXD2
(C1), (C3) and (C4): To obtain more details on I/O type, refer to section 4.2 "I/O Circuit diagram"
The following GPIOs are not available (reserved) with a Wireless CPU
®
running with an AT commands firmware:
A
A
A
T
T
T