DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 459
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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TCSR0 Bit 4—Reset Select (RSTS): Reserved. This bit should not be set to 1.
TCSR1 Bit 4—Prescaler Select (PSS): Selects the input clock source for TCNT in WDT1. For
details, see the description of the CKS2 to CKS0 bits below.
Bit 3—Reset or NMI (RST/NMI
requested on TCNT overflow in watchdog timer mode.
Bits 2 to 0—Clock Select 2 to 0 (CKS2 to CKS0): These bits select an internal clock source,
obtained by dividing the system clock ( ), or subclock ( SUB) for input to TCNT.
Note:
WDT1 TCSR
Bit 4
PSS
0
1
Bit 3
RST/NMI
0
1
Bit 2
CKS2
0
1
WDT0 input clock selection
NMI
NMI
NMI
* The overflow period is the time from when TCNT starts counting up from H'00 until
Bit 1
CKS1
0
1
0
1
overflow occurs.
Description
TCNT counts -based prescaler (PSM) divided clock pulses
TCNT counts SUB-based prescaler (PSS) divided clock pulses
Description
An NMI interrupt is requested
An internal reset is requested
Bit 0
CKS0
0
1
0
1
0
1
0
1
NMI
NMI
NMI): Specifies whether an internal reset or NMI interrupt is
Clock
/2 (Initial value)
/64
/128
/512
/2048
/8192
/32768
/131072
Overflow Period * (when
25.6 µs
819.2 µs
1.6 ms
6.6 ms
26.2 ms
104.9 ms
419.4 ms
1.68 s
Rev. 4.00 Sep 27, 2006 page 413 of 1130
Description
Section 14 Watchdog Timer (WDT)
REJ09B0327-0400
= 20 MHz)
(Initial value)
(Initial value)
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