DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 633

• 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: -

18.2
18.2.1
SYSCR is an 8-bit readable/writable register which controls H8S/2148 Group chip operations. Of
the host interface registers, HICR, IDR1, ODR1, STR1, IDR2, ODR2, and STR2 can only be
accessed when the HIE bit is set to 1. HICR2, IDR3, ODR3, STR3, IDR4, ODR4, and STR4 can
be accessed regardless of the setting of the HIE bit. The host interface CS2 and ECS2 pins are
controlled by the CS2E bit in SYSCR and the FGA20E bit in HICR. See section 3.2.2, System
Control Register (SYSCR), and section 5.2.1, System Control Register (SYSCR), for information
on other SYSCR bits. SYSCR is initialized to H'09 by a reset and in hardware standby mode.
Bit 7—CS2 Enable Bit (CS2E): Used together with the FGA20E bit in HICR to select the pin
that performs the CS2 function.
SYSCR
Bit 7
CS2E
0
1
Bit
Initial value
Read/Write
Register Descriptions
System Control Register (SYSCR)
HICR
Bit 0
FGA20E
0
1
0
1
CS2E
R/W
7
0
Description
CS2 pin function halted (CS2 fixed high internally)
CS2 pin function selected for P81/CS2 pin
CS2 pin function selected for P90/ECS2 pin
IOSE
R/W
6
0
INTM1
R
5
0
INTM0
R/W
4
0
Rev. 4.00 Sep 27, 2006 page 587 of 1130
XRST
R
3
1
NMIEG
R/W
2
0
Section 18 Host Interface
R/W
HIE
REJ09B0327-0400
1
0
(Initial value)
RAME
R/W
0
1