DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 682
![MCU 5V 128K I-TEMP,PB-FREE, 100-](/photos/28/61/286108/100-tqfp_sml.jpg)
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 21 RAM
21.1.2
The on-chip RAM is controlled by SYSCR. Table 21.1 shows the register configuration.
Table 21.1 Register Configuration
Name
System control register
Note:
21.2
The on-chip RAM is enabled or disabled by the RAME bit in SYSCR. For details of other bits in
SYSCR, see section 3.2.2, System Control Register (SYSCR).
Bit 0—RAM Enable (RAME): Enables or disables the on-chip RAM. The RAME bit is
initialized when the reset state is released. It is not initialized in software standby mode.
Bit 0
RAME
0
1
Rev. 4.00 Sep 27, 2006 page 636 of 1130
REJ09B0327-0400
Bit
Initial value
Read/Write
* Lower 16 bits of the address.
Register Configuration
System Control Register (SYSCR)
Description
On-chip RAM is disabled
On-chip RAM is enabled
CS2E
R/W
7
0
IOSE
R/W
6
0
Abbreviation
SYSCR
INTM1
R
5
0
INTM0
R/W
4
0
R/W
R/W
XRST
R
3
1
H'09
Initial Value
NMIEG
R/W
2
0
R/W
HIE
1
0
Address *
H'FFC4
(Initial value)
RAME
R/W
0
1
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