Computime Limited CT-EM2503 ユーザーズマニュアル
CT-EM250
ZigBee-Ready RF Transceiver Modules
Computime Ltd. All rights reserved
Confidential
Page 7 of 15
Enable GPIO2 with GPIO_CFG[7:4]
22 GPIO3
I/O
Digital I/O
Enable GPIO3 with GPIO_CFG[7:4]
23 GPIO4
I/O
Digital I/O
Enable GPIO4 with GPIO_CFG[12] and GPIO_CFG[8]
24 GPIO5
I/O
Digital I/O
Enable GPIO5 with GPIO_CFG[12] and GPIO_CFG[9]
25 GPIO6
I/O
Digital I/O
Enable GPIO6 with GPIO_CFG[10]
26 GPIO7
I/O
Digital I/O
Enable GPIO7 with GPIO_CFG[13] and GPIO_CFG[11]
27 GPIO8
I/O
Digital I/O
Enable GPIO8 with GPIO_CFG[14]
28 TXD
O
UART transmit data of Serial Controller SC1
Enable SC1-4A or SC1-2 with GPIO_CFG[7:4], select UART with
SC1_MODE
29 RXD
I
UART receive data of Serial Controller SC1
Enable SC1-4A or SC1-2 with GPIO_CFG[7:4], select UART with
SC1_MODE
30
SIF_CLK
I
Serial interface, clock (internal pull-down)