M37517F8HP Datasheet, PDF (8/98 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

7517 Group
(1) Port P00
Data bus
Direction
register
Port latch
Serial I/O2 input
(3) Port P02
P02/SCLK2 P-channel output disable bit
Serial I/O2 synchronous clock
selection bit
Serial I/O2 port selection bit
Direction
register
Data bus
Port latch
(2) Port P01
P01/SOUT2 P-channel output
disable bit
Serial I/O2 transmit completion signal
Serial I/O2 port selection bit
Direction
register
Data bus
Port latch
Serial I/O2 output
(4) Port P03
SRDY2 output enable bit
Direction
register
Data bus
Port latch
Serial I/O2 clock output
Serial I/O2 external clock input
Serial I/O2 ready output
(5) Ports P04–P07, P30–P35
Direction
register
Data bus
Port latch
(6) Port P1
Data bus
Direction
register
Port latch
A/D converter input
Analog input pin
selection bit
(7) Port P20
Port XC switch bit
Direction
register
Data bus
Port latch
(8) Port P21
Port XC switch bit
Direction
register
Data bus
Port latch
32kHz RC oscillation enable bit
Port Xc switch bit
32kHz RC oscillation enable bit
Port P21
Reference
-
+
voltage
Fig. 6 Port block diagram (1)
Sub-clock generating circuit input
Rev.1.01 Aug 02, 2004 page 8 of 96