DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 402

• 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

Section 12 8-Bit Timers
12.2.6
STCR is an 8-bit readable/writable register that controls register access, the IIC operating mode
(when the on-chip IIC option is included), and on-chip flash memory (in F-ZTAT versions), and
also selects the TCNT input clock.
For details on functions not related to the 8-bit timers, see section 3.2.4, Serial Timer Control
Register (STCR), and the descriptions of the relevant modules. If a module controlled by STCR is
not used, do not write 1 to the corresponding bit.
STCR is initialized to H'00 by a reset and in hardware standby mode.
Bits 7 to 4—I
of port A and the operation of the I
section 16.2.7, Serial/Timer Control Register (STCR), for details.
Bit 3—Flash Memory Control Register Enable (FLSHE): Controls CPU access to the flash
memory control registers, the power-down mode control registers, and the supporting module
control registers. See section 3.2.4, Serial Timer Control Register (STCR), for details..
Bit 2—Reserved: Do not write 1 to this bit.
Bits 1 and 0—Internal Clock Select 1 and 0 (ICKS1, ICKS0): These bits, together with bits
CKS2 to CKS0 in TCR, select the clock to be input to TCNT. For details, see section 12.2.4,
Timer Control Register (TCR).
Rev. 4.00 Sep 27, 2006 page 356 of 1130
REJ09B0327-0400
Bit
Initial value
Read/Write
Serial/Timer Control Register (STCR)
2
C Control (IICS, IICX1, IICX0, IICE): These bits control the bus buffer function
IICS
R/W
7
0
IICX1
R/W
6
0
2
C bus interface when the IIC option is included on-chip. See
IICX0
R/W
5
0
IICE
R/W
4
0
FLSHE
R/W
3
0
R/W
—
2
0
ICKS1
R/W
1
0
ICKS0
R/W
0
0