Datasheet

R8C/L35C Group, R8C/L36C Group, R8C/L38C Group, R8C/L3AC Group 1. Overview
R01DS0095EJ0101 Rev.1.01 Page 13 of 72
Apr 15, 2011
Figure 1.7 Block Diagram of R8C/L38C Group
Watchdog timer
(14 bits)
System clock generation
circuit
XIN-XOUT
High-speed on-chip oscillator
Low-speed on-chip oscillator
XCIN-XCOUT
RAM
(2)
Multiplier
Timers
Timer RA (8 bits × 1)
Timer RB (8 bits × 1)
Timer RC (16 bits × 1)
Timer RD (16 bits × 2)
Timer RE (8 bits × 1)
Timer RG (16 bits × 1)
R8C CPU core
Memory
R0H R0L
R1H
R2
R3
R1L
A0
A1
FB
SB
USP
ISP
INTB
PC
FLG
I/O ports
Notes:
1. ROM capacity varies with MCU type.
2. RAM capacity varies with MCU type.
A/D converter
(10 bits
× 16 channels)
UART or
clock synchronous serial I/O
(8 bits × 3)
I
2
C bus or SSU
(8 bits × 1)
LIN module
8
Port P0
8
Port P3
Port P4
8
Port P2
ROM
(1)
Peripheral functions
LCD drive control circuit
Common output: Max. 8 pins
Segment output: Max. 48 pins
D/A converter
(8 bits
× 2 channels)
8
Port P11
4
Port P12
4
Port P13
8
Port P7
8
Comparator B
DTC
4
Port P1
8
Port P6
Voltage detection circuit
Low-speed on-chip oscillator
for watchdog timer