HD6417720BP133BV Renesas Electronics America, HD6417720BP133BV Datasheet - Page 737

• Manufacturer Part Number: HD6417720BP133BV
• Description: SH3-DSP, WITH USB AND LCDC, PB-F
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417720BP133BV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: FIFO, I²C, IrDA, MMC, SCI, SD, SIO, SIM, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 117
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

SH7720 Group, SH7721 Group
20.6
In master mode, this module has a possibility that high level period may be short in the two states
described below.
• 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-
Therefore, it monitors SCL and communicates by bit with synchronization.
Figure 20.21 shows the timing of the bit synchronous circuit and table 20.4 shows the time when
SCL output changes from low to Hi-Z then SCL is monitored.
Table 20.4 Time for Monitoring SCL
R01UH0083EJ0400 Rev. 4.00
Sep 21, 2010
CKS3
0
1
up resistance)
Bit Synchronous Circuit
SCL monitor
timing reference
clock
Internal SCL
Figure 20.18 The Timing of the Bit Synchronous Circuit
CKS2
0
1
0
1
SCL
7.5 tpcyc
19.5 tpcyc
17.5 tpcyc
41.5 tpcyc
Time for Monitoring SCL
VIH
Section 20 I
2
C Bus Interface (IIC)
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