DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 184

• Manufacturer Part Number: DF71251AD50FPV
• Description: MCU RISC FLASH 32K 8K 64LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Tinyr

Specifications of DF71251AD50FPV

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 37
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

9.3.1
The TCR registers are 8-bit readable/writable registers that control the TCNT operation for each
channel. The MTU2 has a total of eight TCR registers, one each for channels 0 to 4 and three
(TCRU_5, TCRV_5, and TCRW_5) for channel 5. TCR register settings should be conducted
only when TCNT operation is stopped.
[Legend]
x:
Rev. 5.00 Mar. 06, 2009 Page 164 of 770
REJ09B0243-0500
Bit
7 to 5
4, 3
2 to 0
Don't care
Bit Name
CCLR[2:0]
CKEG[1:0]
TPSC[2:0]
Timer Control Register (TCR)
Initial value:
Initial
Value
000
00
000
R/W:
Bit:
R/W
7
0
R/W
R/W
R/W
R/W
CCLR[2:0]
R/W
6
0
Description
These bits select the TCNT counter clearing source.
See tables 9.4 and 9.5 for details.
These bits select the input clock edge. When the input
clock is counted using both edges, the input clock
period is halved (e.g. MPφ/4 both edges = MPφ/2 rising
edge). If phase counting mode is used on channels 1
and 2, this setting is ignored and the phase counting
mode setting has priority. Internal clock edge selection
is valid when the input clock is MPφ/4 or slower. When
MPφ/1, or the overflow/underflow of another channel is
selected for the input clock, although values can be
written, counter operation compiles with the initial value.
00: Count at rising edge
01: Count at falling edge
1x: Count at both edges
Time Prescaler 0 to 2
These bits select the TCNT counter clock. The clock
source can be selected independently for each channel.
See tables 9.6 to 9.10 for details.
Counter Clear 0 to 2
Clock Edge 0 and 1
R/W
5
0
R/W
CKEG[1:0]
4
0
R/W
3
0
R/W
2
0
TPSC[2:0]
R/W
1
0
R/W
0
0