HD64F7144F50V Renesas Electronics America, HD64F7144F50V Datasheet - Page 584
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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14. I
13. Points for cautions when setting TRS bit in slave mode
Rev.4.00 Mar. 27, 2008 Page 538 of 882
REJ09B0108-0400
In I
valid if it is set from the time when the rising edge of the 9th cycle or the stop condition is
detected until the time when the next rising edge on the SCL pin is detected (the period
indicated as (a) in figure 14.35).
However, if the TRS bit is set outside the period mentioned above (the period indicated as (b)
in figure 14.35), the bit value does not become valid immediately because it is suspended until
the rising edge of the 9th cycle or the stop condition is detected. Therefore, when the address is
received after the re-transmission start condition input without the stop condition, the effective
TRS bit value remains 1 (transmit mode) internally and thus the acknowledge bit is not
transmitted after the address has been received at the 9th cycle of the clock.
To receive the address in slave mode, clear the TRS bit to 0 during the time indicated as (a) in
figure 14.35.
To release SCL low-level fixation that is held by means of the wait function in slave mode,
clear the TRS bit to 0 and then dummy-read ICDR.
2
C Bus Interface (IIC) Option
2
C bus interface slave mode, the value set to the TRS bit in ICCR immediately becomes
SDA
TRS
SCL
Detection of rise of 9th cycle
transmission
Data
Figure 14.35 Timing for Setting TRS Bit in Slave Mode
8
9
TRS bit setting
(a)
Resumption condition
ICDR dummy read
Period in which TRS bit setting is retained
1
Address reception
2
(b)
3
4
5
6
Detection of rise of 9th cycle
7
8
9
A
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