Rohm LAPIS SEMICONDUCTOR ML620Q503, User Manual

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ML620Q503/Q504 User’s Manual
Chapter 17 Port 0
FEUL620Q504 17–1
17 Port 0
17.1 Overview
This LSI includes Port 0 (P00 to P05), which is a 6-bit input/output port.
These ports can also be used as the SA-ADC, RC-ADC, SSIO, UART, FTM output pins.
See the following chapters for reference:
FTM: Chapter 9 “Function Timer”
SSIO: Chapter 11“Synchronous Serial Port”
UART: Chapter 13“UART”
SA-ADC:
Chapter 25 “Successive approximate type A/D converter”
RC-ADC: Chapter 24 “RC Oscillation Type A/D Converter”
17.1.1 Features
•
Allows selection of high-impedance output, P-channel open drain output, N-channel open drain output, or CMOS
output in output mode for each bit.
•
Allows selection of high-impedance input, input with a pull-down resistor, or input with a pull-up resistor in input
mode for each bit.
•
External interrupt inputs(EXI00,EXI01,EXI02,EXI03,EXI04,EXI05), the SA-ADC input pins (AIN8, AIN9, AIN10,
AIN11), The RC-ADC (channel 0) oscillation pins (IN0, CS0, RS0, RT0, RCT0, RCM), the SSIO pins (SCK0,
SOUT0, SIN0), the UART pins ( TXD0, RXD0 ), FTM output pin (TMOUT0, TMOUT1) can be used as the
secondary or tertiary or fouthly functions.
17.1.2 Configuration
Figure 17-1 shows the configuration of Port 0.
P0D : Port 0 data register
P0DIR : Port 0 direction register
P0CON : Port 0 control register
P0MOD : Port 0 mode register
Figure 17-1 Configuration of Port 0
Data bus
Outputs for RC-ADC
(CS0, RS0, RT0, RCT0, RCM)
Output for FTM
(TMOUT0/1)
Output for SSIO
(SCK0,SOUT0)
Output for UART(TXD0)
P00 to P05
P0DIR
P0MOD
P0CON
V
DD
V
DD
V
SS
V
SS
6
10
Port0
Output
Controller
P0D
V
DD
V
SS
Pull-up
Pull-down
Controller
Input for RC-ADC(IN0)
Input for SSIO(SIN0)
Input for UART(RXD0)
3
6
Input for SA-ADC
(AIN8-AIN11)
4
6
EXI00 to EXI05