R8C27 Datasheet, PDF (393/485 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MCU R8C FAMILY / R8C/2x SERIES

R8C/26 Group, R8C/27 Group
19. Flash Memory
Table 19.8 Pin Functions (Flash Memory Standard Serial I/O Mode 3)
Pin
VCC,VSS
RESET
P4_6/XIN/XCIN
P4_7/XOUT/XCOUT
Name
Power input
Reset input
P4_6 input/clock input
P4_7 input/clock output
I/O
Description
Apply the voltage guaranteed for programming and
erasure to the VCC pin and 0 V to the VSS pin.
I Reset input pin.
I Connect a ceramic resonator or crystal oscillator
between the XIN/XCIN and XOUT/XCOUT pins
I/O ^{when connecting external oscillator. Apply “H” and}
“L” or leave the pin open when using as input port.
P0_0 to P0_7
Input port P0
P1_0 to P1_7
Input port P1
P3_0, P3_1, P3_3 to Input port P3
P3_7
P4_2/VREF, P4_5 Input port P4
P5_3, P5_4
Input port P5
MODE
MODE
I Input “H” or “L” level signal or leave the pin open.
I
I
I
I
I/O Serial data I/O pin. Connect to the flash
programmer.
24 23 22 21 20 19 18 17
25
16
26
15
27
14
28
R8C/26 Group
13
29
R8C/27 Group
12
30
11
31
10
32
9
1234567 8
VSS
MODE
VCC
Connect oscillator circuit⁽¹⁾
Mode setting
Signal
Value
MODE ^{Voltage from programmer}
RESET VSS → VCC
Package: PLQP0032GB-A
NOTE:
1. It is not necessary to connect an oscillating circuit
when operating with the on-chip oscillator clock.
Figure 19.17 Pin Connections for Standard Serial I/O Mode 3
Rev.2.10 Sep 26, 2008 Page 376 of 453
REJ09B0278-0210