HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 480

• Manufacturer Part Number: HD64F2638F20J
• Description: IC H8S MCU FLASH 256K 128-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of HD64F2638F20J

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI, SmartCard
• Peripherals: Motor Control PWM, POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 12 Watchdog Timer
12.2.2
TCSR0
Note: * Only a 0 may be written to this bit to clear the flag.
TCSR1
Notes: 1. Only a 0 may be written to this bit to clear the flag.
TCSR is an 8-bit readable/writable * register. Its functions include selecting the clock source to be
input to TCNT, and the timer mode.
TCSR0 (TCSR1) is initialized to H'18 (H'00) by a reset and in hardware standby mode. It is not
initialized in software standby mode.
Note: * TCSR is write-protected by a password to prevent accidental overwriting. For details see
Page 430 of 1458
Bit
Initial value :
R/W
Bit
Initial value :
R/W
2. Subclock functions (subactive mode, subsleep mode, and watch mode) are available in
section 12.2.4, Notes on Register Access.
Timer Control/Status Register (TCSR)
the U-mask and W-mask versions, and H8S/2635 Group only.
:
:
:
:
R/(W) *
R/(W) *
OVF
OVF
7
0
7
0
1
WT/IT
WT/IT
R/W
R/W
6
0
6
0
TME
TME
R/W
R/W
5
0
5
0
PSS *
R/W
—
—
4
1
4
0
2
RST/NMI
R/W
—
—
3
1
3
0
CKS2
CKS2
R/W
R/W
2
0
2
0
H8S/2639, H8S/2638, H8S/2636,
REJ09B0103-0800 Rev. 8.00
H8S/2630, H8S/2635 Group
CKS1
CKS1
R/W
R/W
1
0
1
0
May 28, 2010
CKS0
CKS0
R/W
R/W
0
0
0
0