HD64F3694FY Renesas Electronics America, HD64F3694FY Datasheet - Page 293

• Manufacturer Part Number: HD64F3694FY
• Description: IC H8 MCU FLASH 32K 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of HD64F3694FY

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: PWM, WDT
• Number Of I /o: 29
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

15.6
In master mode,this module has a possibility that high level period may be short in the two states
described below.
Therefore, it monitors SCL and communicates by bit with synchronization.
Figure 15.21 shows the timing of the bit synchronous circuit and table 15.4 shows the time when
SCL output changes from low to Hi-Z then SCL is monitored.
Table 15.4 Time for Monitoring SCL
CKS3
0
1
When SCL is driven to low by the slave device
When the rising speed of SCL is lowered by the load of the SCL line (load capacitance or pull-
up resistance)
Bit Synchronous Circuit
SCL monitor
timing reference
clock
Internal SCL
Figure 15.21 The Timing of the Bit Synchronous Circuit
SCL
CKS2
0
1
0
1
Time for Monitoring SCL
7.5 tcyc
19.5 tcyc
17.5 tcyc
41.5 tcyc
VIH
Rev.5.00 Nov. 02, 2005 Page 263 of 418
Section 15 I
2
C Bus Interface 2 (IIC2)
REJ09B0028-0500