DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 482

• 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 15 Serial Communication Interface (SCI, IrDA)
external clock operation (CKE1 = 1). The setting of bits CKE1 and CKE0 must be carried out
before the SCI’s operating mode is determined using SMR.
For details of clock source selection, see table 15.9 in section 15.3, Operation.
Bit 1
CKE1
0
1
Notes: 1. Initial value
15.2.7
Note:
SSR is an 8-bit register containing status flags that indicate the operating status of the SCI, and
multiprocessor bits.
SSR can be read or written to by the CPU at all times. However, 1 cannot be written to flags
TDRE, RDRF, ORER, PER, and FER. Also note that in order to clear these flags they must be
read as 1 beforehand. The TEND flag and MPB flag are read-only flags and cannot be modified.
Rev. 4.00 Sep 27, 2006 page 436 of 1130
REJ09B0327-0400
Bit
Initial value
Read/Write
2. Outputs a clock of the same frequency as the bit rate.
3. Inputs a clock with a frequency 16 times the bit rate.
* Only 0 can be written, to clear the flag.
Serial Status Register (SSR)
Bit 0
CKE0
0
1
0
1
R/(W) *
TDRE
Description
Asynchronous mode
Synchronous mode
Asynchronous mode
Synchronous mode
Asynchronous mode
Synchronous mode
Asynchronous mode
Synchronous mode
7
1
R/(W) *
RDRF
6
0
R/(W) *
ORER
5
0
Internal clock/SCK pin functions as I/O port *
Internal clock/SCK pin functions as serial clock
output *
Internal clock/SCK pin functions as clock output *
Internal clock/SCK pin functions as serial clock
output
External clock/SCK pin functions as clock input *
External clock/SCK pin functions as serial clock
input
External clock/SCK pin functions as clock input *
External clock/SCK pin functions as serial clock
input
R/(W) *
FER
4
0
1
R/(W) *
PER
3
0
TEND
R
2
1
MPB
R
1
0
MPBT
R/W
0
0
1
3
3
2