Port 6; Overview - Hitachi H8S/2199 Hardware Manual

Single-chip microcomputer
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10.7

Port 6

10.7.1

Overview

Port 6 is an 8-bit I/O port. Table 10.17 shows the port 6 configuration. Port 6 is a large current I/O
port.
The synchronous current is 20 mA maximum (VOL=1.5 V) and four pins can be turned on at the
same time. Port 6 consists of pins that are used as large current I/O ports (P67 to 67) and realtime
output ports (RP7 to RP0). It is switched by port mode register 6 (PMR6), port mode register A
(PMRA), and port control register 6 (PCR6).
The realtime output function can instantaneously switch the output data by an external or internal
trigger port.
Table 10.17 Port 6 Configuration
Port
Function
Port 6
P67 (large current I/O port)
P66 (large current I/O port)
P65 (large current I/O port)
P64 (large current I/O port)
P63 (large current I/O port)
P62 (large current I/O port)
P61 (large current I/O port)
P60 (large current I/O port)
Rev. 1.0, 02/00, page 218 of 1141
Alternative Function
RP7/TMBI (timer B event input)
RP6/$'75* (A/D conversion start external
trigger input)
RP5 (realtime output port pin)
RP4 (realtime output port pin)
RP3 (realtime output port pin)
RP2 (realtime output port pin)
RP1 (realtime output port pin)
RP0 (realtime output port pin)

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