HD6473937RXV Renesas Electronics America, HD6473937RXV Datasheet - Page 248

• Manufacturer Part Number: HD6473937RXV
• Description: MCU 3/5V 60K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300L SLPr

Specifications of HD6473937RXV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI
• Peripherals: POR, WDT
• Number Of I /o: 59
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: OTP
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

3. Register configuration
Table 9-17 shows the register configuration of the watchdog timer.
Table 9-17 Watchdog Timer Registers
Name
Timer control/status register W
Timer counter W
Clock stop register 2
Port mode register 3
9.6.2
1. Timer control/status register W (TCSRW)
TCSRW is an 8-bit read/write register that controls write access to TCW and TCSRW itself,
controls watchdog timer operations, and indicates operating status.
Bit 7: Bit 6 write inhibit (B6WI)
Bit 7 controls the writing of data to bit 6 in TCSRW.
Bit 7
B6WI
0
1
This bit is always read as 1. Data written to this bit is not stored.
234
Bit
Initial value
Read/Write
Note: *
Register Descriptions
Write is permitted only under certain conditions, which are given in the descriptions of
the individual bits.
Description
Bit 6 is write-enabled
Bit 6 is write-protected
B6WI
R
7
1
TCWE
R/W
6
0
*
Abbrev.
TCSRW
TCW
CKSTP2
PMR3
B4WI
R
5
1
TCSRWE
R/W
R/W
R/W
R/W
R/W
R/W
4
0
*
B2WI
R
3
1
Initial Value
H'AA
H'00
H'FF
H'00
WDON
R/W
2
0
*
B0WI
R
1
1
Address
H'FFB2
H'FFB3
H'FFFB
H'FFCA
(initial value)
WRST
R/W
0
0
*