HD6417011VX20V Renesas Electronics America, HD6417011VX20V Datasheet - Page 177

• Manufacturer Part Number: HD6417011VX20V
• Description: MPU 5V 0K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7010r

Specifications of HD6417011VX20V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: POR, PWM
• Number Of I /o: 11
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 7x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Bit 2:
CKS2
0
1
Note: The overflow period is the time from when T1CNT starts counting up from H'00 until
9.2.3
The method for writing to the timer 1 counter (T1CNT) and the timer 1 control/status register
(T1CSR) is different from that for general registers to prevent inadvertent overwriting. The
procedures for writing to and reading these registers are given below.
Writing to T1CNT and T1CSR: These registers must be written to with a word transfer
instruction. They cannot be written to with a byte instruction.
T1CNT and T1CSR both have the same write address. For a write to T1CNT, the upper byte of the
written word must contain H'5A and the lower byte must contain the write data. For a write to
T1CSR, the upper byte of the written word must contain H'A5 and the lower byte must contain the
write data. This transfers the write data from the lower byte to T1CNT or T1CSR. (See figure 9.2).
T1CNT write
T1CSR write
overflow occurs.
Address: H'FFFF8610
Address: H'FFFF8610
Notes on Register Access
Bit 1:
CKS1
0
1
0
1
Bit 0:
CKS0
0
1
0
1
0
1
0
1
Figure 9.2 Writing to T1CNT and T1CSR
15
15
Clock
/2 (initial value)
/64
/128
/256
/512
/1024
/4096
/8192
H'5A
H'A5
Overflow Period* (when
25.6 µs
819.2 µs
1.6384 ms
3.2768 ms
6.5536 ms
13.1072 ms
52.4288 ms
104.8576 ms
8 7
8 7
Description
Write data
Write data
= 20.0 MHz)
0
0
167