DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 602
DF2148RTE20IV
Manufacturer Part Number
DF2148RTE20IV
Description
MCU 5V 128K I-TEMP,PB-FREE, 100-
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of DF2148RTE20IV
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
Host Interface, I²C, IrDA, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
74
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Section 16 I
Rev. 4.00 Sep 27, 2006 page 556 of 1130
REJ09B0327-0400
Notes on TRS Bit Setting and ICDR Register Access
Conditions to cause this failure
Low-fixation of the SCL pins is cancelled incorrectly when the following conditions are
satisfied.
Master mode
Figure 16.26 shows the notes on ICDR reading (TRS = 1) in master mode.
(1) When previously received 2-bytes data remains in ICDR unread (ICDRS are full).
(2) Reads ICDR register after switching to transmit mode (TRS = 1). (RDRF = 0 state)
(3) Sets to receive mode (TRS = 0), after transmitting Rev.1 frame of issued start condition
Slave mode
Figure 16.27 shows the notes on ICDR writing (TRS = 0) in slave mode.
(1) Writes ICDR register in receive mode (TRS = 0), after entering the start condition by
Restriction
Please carry out the following countermeasures when transmitting/receiving via the IIC bus
interface module.
(1) Please read the ICDR registers in receive mode, and write them in transmit mode.
(2) In receiving operation with master mode, please issue the start condition after clearing
by master mode.
slave mode (TDRE = 0 state).
Address match with Rev.1 frame, receive 1 by R/W bit, and switches to transmit mode
(TRS = 1).
When these conditions are satisfied, the low fixation of the SCL pins is cancelled
without ICDR register access after Rev.1 frame is transferred.
the internal flag of the IIC bus interface module, using CLR3 to CLR0 bit of the
DDCSWR register on bus-free state (BBSY = 0).
2
C Bus Interface [Option]
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