R5F21256SNFP#ES Renesas Electronics America, R5F21256SNFP#ES Datasheet - Page 297

• Manufacturer Part Number: R5F21256SNFP#ES
• Description: MCU 2/5V 32K 52-LQFP ES SAMPLE
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/25r

Specifications of R5F21256SNFP#ES

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 52-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
Figure 14.122 Operating Example in Real-Time Clock Mode
Feb 29, 2008
(when MNIE bit in TRECR2 register is set
(when SEIE bit in TRECR2 register is set
to 1 (enable periodic interrupt triggered
to 1 (enable periodic interrupt triggered
IR bit in TREIC register
IR bit in TREIC register
BSY: Bit in registers TRESEC, TREMIN, TREHR, and TREWK
Bits MN12 to MN00 in
Bits HR11 to HR00 in
Bits SC12 to SC00 in
Bits WK2 to WK0 in
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TRESEC register
TRECR1 register
TREMIN register
TREWK register
TREHR register
every second))
every minute))
PM bit in
BSY bit
1
0
1
0
1
0
(Not changed)
(Not changed)
(Not changed)
58
Approx.
62.5 ms
03
Set to 0 by acknowledgement
of interrupt request
59
or a program
1s
Approx.
62.5 ms
00
04
14. Timers