R5F21324CNSP#U0 Renesas Electronics America, R5F21324CNSP#U0 Datasheet - Page 309

• Manufacturer Part Number: R5F21324CNSP#U0
• Description: MCU 1KB FLASH 16K ROM 20-LSSOP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/32Cr

Specifications of R5F21324CNSP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 15
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-LSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/32C Group
REJ09B0573-0100 Rev.1.00 Dec. 18, 2009
Page 280 of 573
Figure 20.2
20.2.5
Note:
After Reset
1. This bit is automatically modified while timer RE counts.
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Address 011Ch
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.
Symbol TSTART H12_H24
TREHR Register
Contents of PM bit
Contents in TREWK register
TREHR Register
Contents of PM bit
Contents in TREWK register
Contents of
Contents of
H12_H24 Operating mode select bit
TRERST Timer RE reset bit
TSTART Timer RE count start bit
Symbol
TCSTF Timer RE count status flag
Bit
Timer RE Control Register 1 (TRECR1) in Real-Time Clock Mode
INT
PM
—
—
Definition of Time Representation
b7
0
H12_H24 bit = 1
H12_H24 bit = 0
H12_H24 bit = 1
H12_H24 bit = 0
Nothing is assigned. If necessary, set to 0. When read, the content is 0.
Reserved bit
Interrupt request timing bit
A.m./p.m. bit
(24-hour mode)
(12-hour mode)
(24-hour mode)
(12-hour mode)
b6
0
Bit Name
18
0
0
6
19
1
1
7
000 (Sunday)
PM
b5
0
1 (p.m.)
20
2
2
8
21
3
3
9
TRERST
b4
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 followings
will occur.
• Registers TRESEC, TREMIN, TREHR, TREWK, and
• Bits TCSTF, INT, PM, H12_H24, and TSTART in the
• The 8-bit counter is set to 00h and the 4-bit counter is set
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
22
10
4
4
0
TRECR2 are set to 00h.
TRECR1 register are set to 0.
to 0h.
Date changes
0 (a.m.)
23
11
5
5
6
6
0
0
INT
001 (Monday)
b3
0
0 (a.m.)
7
7
1
1
000 (Sunday)
8
8
2
2
b2
—
0
9
9
3
3
Function
10
10
TCSTF
11
11
Noon
b1
0
12
0
13
1
⋅⋅⋅
⋅⋅⋅
⋅⋅⋅
⋅⋅⋅
b0
—
0
14
1 (p.m.)
2
15
3
(1)
16
4
20. Timer RE
17
5
R/W
R/W
R/W
R/W
R/W
R/W
R/W
—
R