参数资料
型号: S3P9664-SK
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO20
封装: 0.300 INCH, SOP-20
文件页数: 125/148页
文件大小: 784K
代理商: S3P9664-SK
S3C9664/P9664 (Preliminary Spec)
I/O PORTS
9-1
9
I/O PORTS
OVERVIEW
The S3C9664 has three I/O ports (Port 0, Port 1, Port2 only on USB disabled), 18 pins total. You can access
these ports directly by writing or reading port data register addresses.
Table 9-1. S3C9664 Port Configuration Overview
Port
Function Description
Programmability
P0.0-P0.7
Bit-programmable I/O port for schmitt trigger input, push-pull output and
N-Ch open drain output. Pull-up/pull-down resistors are assignable by
software. Port 1 pins can also be used as external interrupt.
Bit
P1.0 – P1.5
Bit-programmable I/O port for schmitt trigger input, schmitt trigger input
with pull-up and N-Ch open drain output. Port 1 pins can also be used as
AD converter Channel.
Bit
P1.6 – P1.7
Bit-programmable I/O port for schmitt trigger input, schmitt trigger input
with pull-up and N-Ch open drain output and push-pull output.
Bit
P2.0/D-
– P2.1/D+
Bit-programmable I/O port for schmitt trigger input, schmitt trigger input
with pull-up and N-Ch open drain output and push-pull output. Port 2 can
be individually configured as external interrupt inputs. Also it can be
configured as an USB ports.
Bit
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