M16C30P_07 Datasheet, PDF (238/317 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/30 SERIES

M16C/30P Group
19. Flash Memory Version
Table 19.9 Pin Functions (Flash Memory Standard Serial I/O Mode)
Pin
VCC1, VCC2,
VSS
Name
Power Input
I/O
Description
Apply the Flash Program, Erase Voltage to VCC1 pin and
VCC2 pin. Apply 0 V to VSS pin.
CNVSS
CNVSS
I Connect to VCC1 pin.
RESET
Reset Input
I Reset input pin. While RESET pin is “L” level, input a 20
cycle or longer clock to XIN pin.
XIN
XOUT
Clock Input
Clock Output
I Connect a ceramic resonator or crystal oscillator between
O ^{XIN and XOUT pins. To input an externally generated}
clock, input it to XIN pin and open XOUT pin.
BYTE
BYTE
I Connect this pin to VCC1 or VSS.
AVCC, AVSS
Analog Power Supply Input
Connect AVSS to VSS and AVCC to VCC1, respectively.
VREF
Reference Voltage Input
I Enter the reference voltage for A/D from this pin.
P0_0 to P0_7
Input Port P0
I Input “H” or “L” level signal or open.
P1_0 to P1_7
Input Port P1
I Input “H” or “L” level signal or open.
P2_0 to P2_7
Input Port P2
I Input “H” or “L” level signal or open.
P3_0 to P3_7
Input Port P3
I Input “H” or “L” level signal or open.
P4_0 to P4_7
Input Port P4
I Input “H” or “L” level signal or open.
P5_1 to P5_4,
P5_6, P5_7
Input Port P5
I Input “H” or “L” level signal or open.
P5_0
CE Input
I Input “H” level signal.
P5_5
EPM Input
I Input “L” level signal.
P6_0 to P6_3
Input Port P6
I Input “H” or “L” level signal or open.
P6_4/RTS1
BUSY Output
O Standard serial I/O mode 1: BUSY signal output pin
Standard serial I/O mode 2: Monitors the boot program
operation check signal output pin.
P6_5/CLK1
SCLK Input
I Standard serial I/O mode 1: Serial clock input pin
Standard serial I/O mode 2: Input “L”.
P6_6/RXD1
P6_7/TXD1
RXD Input
TXD Input
I Serial data input pin.
O Serial data output pin. ⁽¹⁾
P7_0 to P7_7
Input Port P7
I Input “H” or “L” level signal or open.
P8_0 to P8_3,
P8_6, P8_7
P8_4
Input Port P8
P8_4 input
I Input “H” or “L” level signal or open.
I Input “L” level signal. ⁽²⁾
P8_5/NMI
NMI Input
I Connect this pin to VCC1.
P9_0 to P9_7
Input Port P9
I Input “H” or “L” level signal or open.
P10_0 to P10_7 Input Port P10
I Input “H” or “L” level signal or open.
NOTES:
1. When using the standard serial I/O mode, the internal pull-up is enabled for the TXD1 (P6_7) pin
while the RESET pin is “L”.
2. When using the standard serial I/O mode, the P0_0 to P0_7, P1_0 to P1_7 pins may become
indeterminate while the P8_4 pin is “H” and the RESET pin is “L”. If this causes a program, apply “L”
to the P8_4 pin.
Rev.1.22 Mar 29, 2007 Page 222 of 291
REJ09B0179-0122