R5F211B1SP#U0 Renesas Electronics America, R5F211B1SP#U0 Datasheet - Page 77

• Manufacturer Part Number: R5F211B1SP#U0
• Description: IC R8C MCU FLASH 4K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/1Br

Specifications of R5F211B1SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SIO, SSU, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• For Use With: R0K5211B4S001BE - KIT STARTER FOR R8C/18191A1BR0K5211B4S000BE - KIT DEV EVALUATION R8C/1BR0E521174CPE10 - EMULATOR COMPACT R8C/18/19/1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/1A Group, R8C/1B Group
Rev.1.30
REJ09B0252-0130
Figure 10.1
Interrupt request
Power-on reset
Software reset
CM05
RESET
CM02, CM05, CM06: Bits in CM0 register
CM10, CM13, CM14, CM16, CM17: Bits in CM1 register
OCD0, OCD1, OCD2: Bits in OCD register
HRA00, HRA01: Bits in HRA0 register
Dec 08, 2006
Oscillation Stop Detection Circuit
CM10 = 1(Stop mode)
XIN
Main clock
Clock Generation Circuit
instruction
WAIT
NOTE :
1. Set the same value in bits OCD1 and OCD0.
CM13
CM13
XOUT
Pulse generation
circuit for clock
edge detection and
charge, discharge
control circuit
R
R
S Q
S Q
Page 59 of 315
Frequency adjustable
HRA00
CM14
Main clock
CM02
Forcible discharge when OCD0
HRA1 register
Charge,
discharge
circuit
a
OCD1
Oscillation
stop
detection
High-speed
on-chip
oscillator
Low-speed
on-chip
oscillator
b
CM06 = 0
CM17 to CM16 = 00b
HRA01 = 1
HRA01 = 0
(1)
HRA2 register
1/2
System clock
OCD2 = 1
OCD2 = 0
fRING-S
(1)
fRING-fast
=0
c
Oscillation Stop Detection
Interrupt Generation
Circuit Detection
CM06 = 0
CM17 to CM16 = 01b
fRING
1/2
Watchdog
Timer Interrupt
Voltage Watch
2 Interrupt
On-chip oscillator clock
a
b
d
OCD2 bit switch signal
CM14 bit switch signal
CM06 = 0
CM17 to CM16 = 10b
c
Divider
d
1/128
Power-on
reset circuit
1/2
e
Voltage
detection
circuit
fRING128
g
h
f1
f2
f4
e
f8
f32
CM06 = 1
Timer C
1/2
INT0
Oscillation stop
detection,
Watchdog timer,
Voltage monitor 2
interrupt
CM06 = 0
CM17 to CM16 = 11b
10. Clock Generation Circuit
Timer X
1/2
h
Detail of divider
Watchdog
timer
Timer Z
CPU clock
g
Converter
A/D
I
2
SSU
C bus
UART1
UART0