DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 640

MCU 5V 128K I-TEMP,PB-FREE, 100-

DF2148RTE20IV

Manufacturer Part Number
DF2148RTE20IV
Description
MCU 5V 128K I-TEMP,PB-FREE, 100-
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Datasheets

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
-
Section 18 Host Interface
Bit 0—Output Buffer Full (OBF): Set to 1 when the slave processor writes to ODR1. Cleared to
0 when the host processor reads ODR.
Bit 0
OBF
0
1
Table 18.3 shows the conditions for setting and clearing the STR flags.
Table 18.3 Set/Clear Timing for STR Flags
Flag
C/D
IBF *
OBF
Note:
Rev. 4.00 Sep 27, 2006 page 594 of 1130
REJ09B0327-0400
* The IBF flag setting and clearing conditions are different when the fast A20 gate is
used. For details see table 18.7.
Description
[Clearing condition]
When the host processor reads ODR or the slave writes 0 in the OBF bit (Initial value)
[Setting condition]
When the slave processor writes to ODR
Setting Condition
Rising edge of host’s write signal
(IOW) when HA0 is high
Rising edge of host’s write signal
(IOW) when writing to IDR1
Falling edge of slave’s internal write
signal (WR) when writing to ODR1
Clearing Condition
Rising edge of host’s write signal (IOW) when
HA0 is low
Falling edge of slave’s internal read signal (RD)
when reading IDR1
Rising edge of host’s read signal (IOR) when
reading ODR1

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