DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 666

• 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: -

Section 20 A/D Converter
20.2.3
ADCR is an 8-bit readable/writable register that enables or disables external triggering of A/D
conversion operations.
ADCR is initialized to H'3F by a reset, and in standby mode, watch mode, subactive mode,
subsleep mode, and module stop mode.
Bits 7 and 6—Timer Trigger Select 1 and 0 (TRGS1, TRGS0): These bits select enabling or
disabling of the start of A/D conversion by a trigger signal. Only set bits TRGS1 and TRGS0
while conversion is stopped.
Bit 7
TRGS1
0
1
Bits 5 to 0—Reserved: Should always be written with 1.
Note: Some of these bits are readable/writable in products other than the HD64F2148,
Rev. 4.00 Sep 27, 2006 page 620 of 1130
REJ09B0327-0400
Bit
Initial value
Read/Write
HD64F2147N, HD64F2144, HD64F2142R and HD6432142, however, when writing, be
sure to write 1 here for software compatibility.
A/D Control Register (ADCR)
Bit 6
TRGS0
0
1
0
1
TRGS1
R/W
7
0
Description
Start of A/D conversion by external trigger is disabled
Start of A/D conversion by external trigger is disabled
Start of A/D conversion by external trigger (8-bit timer) is enabled
Start of A/D conversion by external trigger pin is enabled
TRGS0
R/W
6
0
—
—
5
1
—
—
4
1
—
—
3
1
—
—
2
1
—
—
1
1
(Initial value)
—
—
0
1