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M16C/62P Group (M16C/62P, M16C/62PT)
Table 22.7 Pin Functions (Flash Memory Standard Serial I/O Mode)
Pin
VCC1, VCC2,
Power Input
VSS
CNVSS
CNVSS
Reset Input
RESET
XIN
Clock Input
XOUT
Clock Output
BYTE
BYTE
AVCC, AVSS
Analog Power Supply Input
VREF
Reference Voltage Input
P0_0 to P0_7
Input Port P0
P1_0 to P1_7
Input Port P1
P2_0 to P2_7
Input Port P2
P3_0 to P3_7
Input Port P3
P4_0 to P4_7
Input Port P4
P5_1 to P5_4,
Input Port P5
P5_6, P5_7
P5_0
CE Input
P5_5
EPM Input
P6_0 to P6_3
Input Port P6
P6_4/RTS1
BUSY Output
P6_5/CLK1
SCLK Input
P6_6/RXD1
RXD Input
P6_7/TXD1
TXD Output
P7_0 to P7_7
Input Port P7
P8_0 to P8_4,
Input Port P8
P8_6, P8_7
P8_5/NMI
NMI Input
P9_0 to P9_7
Input Port P9
P10_0 to P10_7
Input Port P10
P11_0 to P11_7
Input Port P11
P12_0 to P12_7
Input Port P12
P13_0 to P13_7
Input Port P13
P14_0, P14_1
Input Port P14
NOTES:
1. Available in only the 128-pin version.
2. When using standard serial input/output mode 1, the TXD pin must be held high while the RESET pin is pulled low. Therefore,
connect this pin to VCC1 via a resistor. Because this pin is directed for data output after reset, adjust the pull-up resistance value
in the system so that data transfers will not be affected.
R
e
. v
2
3 .
0
S
e
p
0
, 1
2
0
0
4
R
E
J
0
9
B
0
1
8
5
0 -
2
3
0
Z
Power
Name
I/O
Supply
I
VCC1
I
VCC1
I
VCC1
O
VCC1
I
VCC1
I
I
VCC2
I
VCC2
I
VCC2
I
VCC2
I
VCC2
I
VCC2
I
VCC2
I
VCC2
I
VCC1
VCC1
O
VCC1
I
I
VCC1
O
VCC1
I
VCC1
I
VCC1
I
VCC1
I
VCC1
I
VCC1
I
VCC1
I
VCC2
I
VCC2
I
VCC1
page 266
f o
3
6
4
Description
Apply the voltage guaranteed for Program and Erase to VCC1 pin
and VCC2 to the VCC2 pin. The VCC apply condition is that
VCC2
VCC1. Apply 0 V to VSS pin.
Connect to VCC1 pin.
Reset input pin. While RESET pin is "L" level, input a 20 cycle or
longer clock to XIN pin.
Connect a ceramic resonator or crystal oscillator between XIN and
XOUT pins. To input an externally generated clock, input it to XIN pin
and open XOUT pin.
Connect this pin to VCC1 or VSS.
Connect AVSS to VSS and AVCC to VCC1, respectively.
Enter the reference voltage for A/D from this pin.
Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
Input "H" level signal.
Input "L" level signal.
Input "H" or "L" level signal or open.
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.
Standard serial I/O mode 1: Serial clock input pin
Standard serial I/O mode 2: Input "L".
Serial data input pin.
(2)
Serial data output pin.
Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
Connect this pin to VCC1.
Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
Input "H" or "L" level signal or open.
22. Flash Memory Version
(1)
(1)
(1)
(1)
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