DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 371

• Manufacturer Part Number: DF2437FV
• Description: IC H8S/2437 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of DF2437FV

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

12.3.5
TSR indicates the status of each channel. The TPU has a total of three TSR registers, one for each
channel.
Bit
7
6
5
4
Bit Name Initial Value R/W
TCFD
⎯
TCFU
TCFV
Timer Status Register (TSR)
1
1
0
0
R
R
R/(W)* Underflow Flag
R/(W)* Overflow Flag
Description
Count Direction Flag
Status flag that indicates the direction in which TCNT
counts in channels 1 and 2. In channel 0, 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 and 2 are set to phase
counting mode. In channel 0, bit 5 is reserved. It is
always read as 0 and cannot be modified.
[Setting condition]
When the TCNT value underflows (change 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.
[Setting condition]
When the TCNT value overflows (change from H'FFFF to
[Clearing condition]
When 0 is written to TCFV after reading TCFV = 1
H'0000)
Rev.2.00 May. 28, 2009 Page 331 of 732
REJ09B0059-0200