DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 93
DF2437FV
Manufacturer Part Number
DF2437FV
Description
IC H8S/2437 MCU FLASH 128QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Specifications of DF2437FV
Core Processor
H8S/2600
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
85
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
128-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2437FV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 93 of 776
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3.2.2
SYSCR selects saturating calculation for the MAC instruction, and controls reset source monitor,
Ram address space, and on-chip flash memory control.
Bit
7
6 to 4
3
2
1
0
System Control Register (SYSCR)
Bit Name Initial Value
MACS
⎯
XRST
FLASHE
⎯
RAME
0
All 0
1
0
0
1
R/W
R/W
R/W
R
R/W
R/W
R/W
Descriptions
MAC Saturation
Selects either saturating or non-saturating calculation
for the MAC instruction.
0: Non-saturating calculation for MAC instruction
1: Saturating calculation for MAC instruction
Reserved
The initial value should not be changed.
External Reset
Indicates reset source. Reset occurs as external reset
input or watchdog timer overflow.
0: Generated by watchdog timer overflow
1: Generated by external reset
Flash Memory Control Register Enable
Controls CPU access to the flash memory control
registers (FCCS, FPCS, FECS, FKEY, FMATS, and
FTDAR).
0: Flash memory control registers are not selected
1: Flash memory control registers are selected
Reserved
The initial value should not be changed.
RAM Enable
Enables or disables the on-chip RAM. The RAME bit
is initialized when the reset status is released.
0: On-chip RAM is disabled
1: On-chip RAM is enabled
Rev.2.00 May. 28, 2009 Page 53 of 732
REJ09B0059-0200
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