DF2556FC20DV Renesas Electronics America, DF2556FC20DV Datasheet - Page 350

• Manufacturer Part Number: DF2556FC20DV
• Description: IC H8S/2556 MCU FLASH 144QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2500r

Specifications of DF2556FC20DV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 104
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 10 16-Bit Timer Pulse Unit (TPU)
10.3.5
The TSR registers indicate the status of each channel. The TPU has six TSR registers, one for each
channel.
Rev. 6.00 Sep. 24, 2009 Page 302 of 928
REJ09B0099-0600
Bit
7
6
5
4
Bit Name
TCFD
⎯
TCFU
TCFV
Timer Status Register (TSR)
1
0
0
Initial
value
1
R/W
R
⎯
R/(W)* Underflow Flag
R/(W)* Overflow Flag
Description
Count Direction Flag
Status flag that shows the direction in which TCNT counts
in channels 1, 2, 4, and 5.
In channels 0 and 3, bit 7 is reserved. It is always read as 1
and cannot be modified.
0: TCNT counts down
1: TCNT counts up
Reserved
This bit is always read as 1 and cannot be modified.
Status flag that indicates that TCNT underflow has
occurred when channels 1, 2, 4, and 5 are set to phase
counting mode. Only 0 can be written, for flag clearing.
In channels 0 and 3, bit 5 is reserved. It is always read as 0
and cannot be modified.
[Setting condition]
When the TCNT value underflows (changes from H'0000 to
H'FFFF)
[Clearing condition]
When 0 is written to TCFU after reading TCFU = 1
Status flag that indicates that TCNT overflow has occurred.
Only 0 can be written, for flag clearing.
[Setting condition]
When the TCNT value overflows (changes from H'FFFF to
H'0000 )
[Clearing condition]
When 0 is written to TCFV after reading TCFV = 1