R5F21294SNSP#U0 Renesas Electronics America, R5F21294SNSP#U0 Datasheet - Page 239

• Manufacturer Part Number: R5F21294SNSP#U0
• Description: MCU 3/5V 16K+2K 20PIN-SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/29r

Specifications of R5F21294SNSP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/28 Group, R8C/29 Group
Rev.2.10
REJ09B0279-0210
Figure 14.66
Figure 14.67
Timer RE Control Register 1
b7 b6 b5 b4
NOTE:
1.
PM bit and H12_H24 bits: Bits in TRECR1 register
The above applies to the case when count starts from a.m. 0 on Sunday.
TREHR Register
Contents of PM bit
Contents in TREWK register
TREHR Register
Contents of PM bit
Contents in TREWK register
Contents of
Contents of
This bit is automatically modified w hile timer RE counts.
Sep 26, 2008
b3 b2
0
TRECR1 Register in Real-Time Clock Mode
Definition of Time Representation
b1 b0
H12_H24 bit = 1
H12_H24 bit = 0
H12_H24 bit = 1
H12_H24 bit = 0
(24-hour mode)
(12-hour mode)
(24-hour mode)
(12-hour mode)
Bit Symbol
H12_H24
TSTART
TRECR1
TRERST
Symbol
TCSTF
(b0)
(b2)
INT
Page 220 of 441
PM
—
—
18
0
0
6
Nothing is assigned. If necessary, set to 0.
When read, the content is 0.
Timer RE count status flag
Reserved bit
Interrupt request timing bit
Timer RE reset bit
A.m./p.m. bit
Operating mode select bit
Timer RE count start bit
19
1
1
7
000 (Sunday)
1 (p.m.)
20
2
2
8
Address
Bit Name
21
011Ch
3
3
9
22
10
4
4
Date changes
0 (a.m.)
23
11
5
5
6
6
0
0
001 (Monday)
0 (a.m.)
7
7
1
1
0 : Count stopped
1 : Counting
Set to 0.
Set to 1 in real-time clock mode.
When setting this bit to 0, after setting it to 1, the
follow ings w ill occur.
• Registers TRESEC, TREMIN, TREHR, TREWK,
• Bits TCSTF, INT, PM, H12_H24, and TSTART
• The 8-bit counter is set to 00h and
When the H12_H24 bit is set to 0
(12-hour mode)
0 : a.m.
1 : p.m.
When the H12_H24 bit is set to 1 (24-hour
mode), its value is undefined.
0 : 12-hour mode
1 : 24-hour mode
0 : Count stops
1 : Count starts
and TRECR2 are set to 00h.
in the TRECR1 register are set to 0.
the 4-bit counter is set to 0h.
000 (Sunday)
8
8
2
2
9
9
3
3
10
10
(1)
After Reset
11
11
Noon
Function
00h
12
0
13
1
⋅⋅⋅
⋅⋅⋅
⋅⋅⋅
⋅⋅⋅
14
1 (p.m.)
2
15
3
16
4
17
5
14. Timers
RW
RW
RW
RW
RW
RW
RW
RO
—