HD64F7144F50V Renesas Electronics America, HD64F7144F50V Datasheet - Page 583
HD64F7144F50V
Manufacturer Part Number
HD64F7144F50V
Description
IC SUPERH MCU FLASH 256K 112QFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7144r
Specifications of HD64F7144F50V
Core Processor
SH-2
Core Size
32-Bit
Speed
50MHz
Connectivity
EBI/EMI, I²C, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
74
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
112-QFP
For Use With
HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)EDK7145 - DEV EVALUATION KIT SH7145
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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12. Points for caution when reading ICDR and accessing ICCR in slave transmit mode
TRS bit
SDA
SCL
Figure 14.34 Timing for Reading ICDR and Accessing ICCR in Slave Transmit Mode
In I
during the period shaded in figure 14.34. However, in interrupt handling processing that is
generated in synchronization with the rising edge of the 9th cycle of the clock, reading ICDR
or reading/writing to ICCR causes no error because the shaded period has passed before
making the transition to interrupt handling.
To handle interrupts securely, be sure to keep either of the following conditions.
⎯ Before starting the receive operation of the next slave address, finish the read of ICDR data
⎯ Monitor the BC2 to BC0 counter in ICMR; when the count is 000 (8th or 9th cycle of the
2
that has been received so far or the read/write of ICCR.
clock), wait for at least two transfer clocks to let the shaded period pass. Then, read ICDR
or read/write to ICCR.
C bus interface slave transmit mode, do not read ICDR or do not read/write to ICCR
Address reception
R/W
8
Detection of rise of 9th transmit/receive clock
Period in which read from ICDR and read from
or write to ICCR are prohibited
A
9
(6 peripheral clocks)
Erroneous waveforms
Rev.4.00 Mar. 27, 2008 Page 537 of 882
14. I
2
C Bus Interface (IIC) Option
Write to ICDR
REJ09B0108-0400
Data transmission
Bit 7
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