DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 793

• Manufacturer Part Number: DF2148ATE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148ATE20

• 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: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2148ATE20; HD64F2148ATE20

25.1.1
The power-down state is controlled by the SBYCR, LPWRCR, TCSR (WDT1), and MSTPCR
registers. Table 25.3 summarizes these registers.
Table 25.3 Power-Down State Registers
Notes: 1. Lower 16 bits of the address.
25.2
25.2.1
SBYCR is an 8-bit readable/writable register that performs power-down mode control.
SBYCR is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Name
Standby control register
Low-power control register
Timer control/status register
(WDT1)
Module stop control register
Bit
Initial value
Read/Write
2. Some power down state registers are assigned to the same address as other registers.
Register Configuration
Register Descriptions
Standby Control Register (SBYCR)
In this case, register selection is performed by the FLSHE bit in the serial timer control
register (STCR).
SSBY
R/W
7
0
STS2
R/W
6
0
Abbreviation
SBYCR
LPWRCR
TCSR
MSTPCRH
MSTPCRL
STS1
R/W
5
0
STS0
R/W
4
0
R/W
R/W
R/W
R/W
R/W
R/W
Rev. 4.00 Sep 27, 2006 page 747 of 1130
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3
0
H'00
Initial Value
H'00
H'00
H'3F
H'FF
Section 25 Power-Down State
SCK2
R/W
2
0
SCK1
R/W
REJ09B0327-0400
1
0
Address *
H'FF84 *
H'FF85 *
H'FFEA
H'FF86 *
H'FF87 *
SCK0
R/W
0
0
2
2
2
2
1