HD64F7051SFJ20V Renesas Electronics America, HD64F7051SFJ20V Datasheet - Page 242

• Manufacturer Part Number: HD64F7051SFJ20V
• Description: MCU 5V 256K J-TEMP PB-FREE QFP-1
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7050r

Specifications of HD64F7051SFJ20V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, WDT
• Number Of I /o: 102
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 168-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 10 Advanced Timer Unit (ATU)
10.2.3
Prescaler register 1 (PSCR1) is an 8-bit register. The ATU has one PSCR1 register.
PSCR1 is an 8-bit readable/writable register that enables the first-stage counter clock ' input to
each free-running counter (TCNT0 to TCNT9) and down-counter (DCNT10A to DCNT10H) to be
set to any value from /1 to /32.
Input counter clock ' is determined by setting PSCA to PSCE: ' is /1 when the set value is
H'00, and /32 when H'1F.
PSCR1 is initialized to H'00 by a power-on reset, and in hardware standby mode and software
standby mode.
The internal clock ' set with this register can undergo further second-stage scaling to create clock
Rev. 5.00 Jan 06, 2006 page 220 of 818
REJ09B0273-0500
" for channels 1 to 10, the setting being made in the timer control register (TCR).
Initial value:
Prescaler Register 1 (PSCR1)
R/W:
Bit:
—
R
7
0
—
R
6
0
—
R
5
0
PSCE
R/W
4
0
PSCD
R/W
3
0
PSCC
R/W
2
0
PSCB
R/W
1
0
PSCA
R/W
0
0