R5F21237KFP#U0 Renesas Electronics America, R5F21237KFP#U0 Datasheet - Page 498
R5F21237KFP#U0
Manufacturer Part Number
R5F21237KFP#U0
Description
IC R8C/23 MCU FLASH 48LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/23r
Datasheet
1.R5F21237DFPU0.pdf
(551 pages)
Specifications of R5F21237KFP#U0
Core Processor
R8C
Core Size
16/32-Bit
Speed
16MHz
Connectivity
CAN, I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, Voltage Detect, WDT
Number Of I /o
41
Program Memory Size
48KB (48K x 8)
Program Memory Type
FLASH
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
48-LQFP
For Use With
RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
R5F21237KFP#U0R5F21237KFP#U1
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 498 of 551
- Download datasheet (6Mb)
R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
22.3.3
Table 22.1
When the CSELi bit is set to 1, set the TSTARTi bit to 0 and the count
stops.
When the CSELi bit is set to 0, the count stops at compare match of
registers TRDi and TRDGRAi.
22.3.3.1
22.3.3.2
22.3.3.3
When writing the value to the TRDSRi register and continuously reading the same register, the value before
writing may be read. In this case, execute the JMP.B instruction between the writing and reading.
•
•
•
•
•
Set the TRDSTR register using the MOV instruction.
When the CSELi (i = 0 or 1) is set to 0 (the count stops at compare match of registers TRDi and
TRDGRAi), the count does not stop and the TSTARTi bit remains unchanged even if 0 (count stops) is
written to the TSTARTi bit.
Therefore, set the TSTARTi bit to 0 to change other bits without changing the TSTARTi bit when the
CSELi bit is set to 0.
To stop counting by a program, set the TSTARTi bit to 0 after setting the CSELi bit to 1. Although the
CSELi bit is set to 1 and the TSTARTi bit is set to 0 at the same time (with 1 instruction), the count cannot
be stopped.
Table 22.1 lists the TRDIOji (j = A, B, C, or D) Pin Output Level when Count Stops to use the TRDIOji pin
with the timer RD output.
When writing the value to the TRDi register by a program while the TSTARTi bit in the TRDSTR register
is set to 1 (count starts), avoid to overlap with the timing to set the TRDi register to 0000h, and then write.
When the timing to set the TRDi register to 0000h overlaps with the timing to write the value to the TRDi
register, the value is not written and the TRDi register is set to 0000h.
- 001b (clear by the TRDi register at the compare match with the TRDGRAi register)
- 010b (clear by the TRDi register at the compare match with the TRDGRBi register.)
- 011b (synchronous clear)
- 101b (clear by the TRDi register at the compare match with the TRDGRCi register.)
- 110b (clear by the TRDi register at the compare match with the TRDGRDi register.)
When writing the value to the TRDi register and continuously reading the same register, the value before
writing may be read. In this case, execute the JMP.B instruction between the writing and reading.
These precautions are applicable when selecting the following by the CCLR2 to CCLR0 bits in the
TRDCRi register.
Notes on Timer RD
Program Example
Program Example
TRDSTR Register
TRDi Register (i = 0 or 1)
TRDSRi Register (i = 0 or 1)
TRDIOji (j = A, B, C, or D) Pin Output Level when Count Stops
Page 476 of 501
Count Stop
L1:
L1:
MOV.W
JMP.B
MOV.W
MOV.B
JMP.B
MOV.B
#XXXXh, TRD0
L1
TRD0,DATA
#XXh, TRDSR0
L1
TRDSR0,DATA
Hold the output level immediately before the
count stops.
Hold the output level after output changes by
compare match.
TRDIOji Pin Output when Count Stops
;Writing
;JMP.B
;Reading
;Writing
;JMP.B
;Reading
22. Usage Notes
Related parts for R5F21237KFP#U0
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
KIT STARTER FOR M16C/29
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C/2D
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
R0K33062P STARTER KIT
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C/23 E8A
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C/25
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER H8S2456 SHARPE DSPLY
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C38C
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C35C
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8CL3AC+LCD APPS
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR RX610
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R32C/118
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT DEV RSK-R8C/26-29
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR SH7124
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR H8SX/1622
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT DEV FOR SH7203
Manufacturer:
Renesas Electronics America
Datasheet: