R5F21191SP#U0 Renesas Electronics America, R5F21191SP#U0 Datasheet - Page 122

• Manufacturer Part Number: R5F21191SP#U0
• Description: IC R8C MCU FLASH 8K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/19r

Specifications of R5F21191SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SIO, 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 4x1b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13R0E521174CPE10 - EMULATOR COMPACT R8C/18/19/1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/18 Group, R8C/19 Group
Rev.1.30
REJ09B0222-0130
Figure 14.3
Prescaler X Register
Timer X Register
Timer Count Source Setting Register
b7
b7
b7 b6 b5 b4
NOTE:
0 0
1. Do not sw itch count sources during a count operation. Stop the timer count before sw itching count sources.
Apr 14, 2006
b3 b2 b1 b0
0 0
Registers PREX, TX, and TCSS
b0
b0
Timer mode
Pulse output mode
Event counter mode
Pulse w idth
measurement mode
Pulse period
measurement mode
Counts underflow of prescaler X
Bit Symbol
(b3-b2)
(b7-b6)
Symbol
TXCK0
TXCK1
TZCK0
TZCK1
TCSS
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—
—
Symbol
Symbol
PREX
Mode
TX
Timer X count source select
bits
Reserved bits
Timer Z count source select
bits
Reserved bits
(1)
(1)
Address
Bit Name
008Eh
Counts internal count source.
Counts internal count source.
Counts input pulses from external clock.
Measures pulse w idth of input pulses from
external clock (counts internal count source).
Measures pulse period of input pulses from
external clock (counts internal count source).
Function
Address
b1 b0
0 0 : f1
0 1 : f8
1 0 : fRING
1 1 : f2
b5 b4
0 0 : f1
0 1 : f8
1 0 : Selects timer X underflow .
1 1 : f2
Set to 0.
Set to 0.
008Dh
Address
Function
008Ch
After Reset
Function
00h
Setting Range
After Reset
00h to FFh
Setting Range
After Reset
00h to FFh
00h to FFh
00h to FFh
00h to FFh
00h to FFh
FFh
FFh
14. Timers
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW