DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 306

• 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 8 I/O Ports
8.10.2
Table 8.20 summarizes the port 9 registers.
Table 8.20 Port 9 Registers
Name
Port 9 data direction register
Port 9 data register
Notes: 1. Lower 16 bits of the address.
Port 9 Data Direction Register (P9DDR)
Mode 1
Modes 2 and 3
P9DDR is an 8-bit write-only register, the individual bits of which specify input or output for the
pins of port 9. P9DDR cannot be read; if it is, an undefined value will be returned.
P9DDR is initialized to H'40 (mode 1) or H'00 (modes 2 and 3) by a reset and in hardware standby
mode. It retains its prior state in software standby mode.
Rev. 4.00 Sep 27, 2006 page 260 of 1130
REJ09B0327-0400
Bit
Initial value
Read/Write
Initial value
Read/Write
Modes 1, 2 and 3 (EXPE = 1)
Pin P97 functions as a bus control input (WAIT), the IIC0 I/O pin (SDA0), or an I/O port,
according to the wait mode setting. When P97 functions as an I/O port, it becomes an output
port when P97DDR is set to 1, and an input port when P97DDR is cleared to 0.
Pin P96 functions as the output pin when P96DDR is set to 1, and as the subclock input
(EXCL) or an input port when P96DDR is cleared to 0.
Pins P95 to P93 automatically become bus control outputs (AS/IOS, HWR, RD), regardless of
the input/output direction indicated by P95DDR to P93DDR.
Pins P92 and P91 become output ports when P92DDR and P91DDR are set to 1, and input
ports when P92DDR and P91DDR are cleared to 0.
2. Initial value depends on the mode.
Register Configuration
P97DDR P96DDR P95DDR P94DDR P93DDR P92DDR P91DDR P90DDR
W
W
7
0
0
W
W
6
1
0
Abbreviation
P9DDR
P9DR
W
W
5
0
0
W
W
4
0
0
R/W
W
R/W
W
W
3
0
0
Initial Value
H'40/H'00 *
H'00
W
W
2
0
0
2
W
W
1
0
0
Address *
H'FFC0
H'FFC1
W
W
0
0
0
1