M16C80 Datasheet, PDF (302/358 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/80 SERIES

M16C/80 Group
31. Parallel I/O Mode
Pin functions (Flash memory standard serial I/O mode)
Pin
Name
I/O
Description
VCC,VSS
Power input
Apply 4.2V to 5.5V to Vcc pin and 0 V to Vss pin.
CNVSS
RESET
CNVSS
Reset input
I ^{Connect to Vcc pin.}
I Reset input pin. While reset is "L" level, a 20 cycle or longer clock
must be input to XIN pin.
XIN
XOUT
BYTE
AVCC, AVSS
Clock input
Clock output
BYTE
I ^{Connect a ceramic resonator or crystal oscillator between XIN}
and XOUT pins. To input an externally generated clock, input it
O ^{to XIN pin and open XOUT pin.}
I ^{Connect this pin to Vcc or Vss.}
Analog power supply input I ^{Connect AVSS to Vss and AVcc to Vcc, respectively.}
VREF
P00 to P07
P10 to P17
P20 to P27
P30 to P37
P40 to P47
P51 to P54,
P56, P57
P50
P55
P60 to P63
P64
Reference voltage input
Input port P0
Input port P1
Input port P2
Input port P3
Input port P4
Input port P5
CE input
EPM input
Input port P6
BUSY output
I ^{Enter the reference voltage for A/D converter from this pin.}
I ^{Input "H" or "L" level signal or open.}
I ^{Input "H" or "L" level signal or open.}
I ^{Input "H" or "L" level signal or open.}
I ^{Input "H" or "L" level signal or open.}
I ^{Input "H" or "L" level signal or open.}
I ^{Input "H" or "L" level signal or open.}
I ^{Input "H" level signal.}
I ^{Input "L" level signal.}
I ^{Input "H" or "L" level signal or open.}
O
Standard serial mode 1: BUSY signal output pin
Standard serial mode 2: Monitors the program operation check
P65
SCLK input
P66
P67
P70 to P77
RxD input
TxD output
Input port P7
P80 to P84, P86, Input port P8
P87
P85
NMI input
P90 to P97
P100 to P107
P110 to P114
P120 to P127
P130 to P137
P140 to P146
P150 to P157
Input port P9
Input port P10
Input port P11
Input port P12
Input port P13
Input port P14
Input port P15
I
Standard serial mode 1: Serial clock input pin
Standard serial mode 2: Input "L" level signal.
I ^{Serial data input pin}
O ^{Serial data output pin}
I ^{Input "H" or "L" level signal or open.}
I ^{Input "H" or "L" level signal or open.}
I ^{Connect this pin to Vcc.}
I ^{Input "H" or "L" level signal or open.}
I ^{Input "H" or "L" level signal or open.}
I ^{Input "H" or "L" level signal or open. (Note)}
I ^{Input "H" or "L" level signal or open. (Note)}
I ^{Input "H" or "L" level signal or open. (Note)}
I ^{Input "H" or "L" level signal or open. (Note)}
I ^{Input "H" or "L" level signal or open. (Note)}
Note: Port P11 to P15 exist in 144-pin version.
Rev.1.00 Aug. 02, 2005 ^{Page 291} of 329
REJ09B0187-0100