DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 544

• 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: -

Section 17 I
17.3.3
ICMR controls a wait in master mode and selects the transfer bit count.
Rev.2.00 May. 28, 2009 Page 504 of 732
REJ09B0059-0200
Bit Bit Name
0
Bit Bit Name
7
6
5
4
3
⎯
⎯
WAIT
⎯
⎯
BCWP
I
2
C Bus Mode Register (ICMR)
2
C Bus Interface 3 (IIC3)
Initial Value R/W
1
Initial Value R/W
0
1
1
0
1
⎯
R/W
⎯
⎯
R/W
R/W
Description
Reserved
This bit is always read as 1.
Description
Reserved
The write value should always be 0.
Wait Insertion Bit
Selects whether to insert a wait after data transfer except
for the acknowledge bit in master mode. When the WAIT
bit is set to 1, after the fall of the clock for the last data bit,
low period is extended for two transfer clocks. If the WAIT
bit is cleared to 0, data and acknowledge bits are
transferred consecutively with no wait inserted.
The setting of this bit is invalid in slave mode.
Reserved
These bits are always read as 1.
BC Write Protect
Controls the BC2 to BC0 modifications. When modifying
the BC2 to BC0 bits, this bit should be cleared to 0 and use
the MOV instruction.
0: When writing, values of BC2 to BC0 are set.
1: When reading, 1 is always read.
When writing, settings of BC2 to BC0 are invalid.