DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 547

• Manufacturer Part Number: DF2148BTE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148BTE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, SCI, X-Bus
• Peripherals: 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): 4.5 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: HD64F2148BTE20; HD64F2148BTE20

Figure 17.2 shows how the keyboard buffer controller is connected.
17.2
Table 17.1 lists the input/output pins used by the keyboard buffer controller.
Table 17.1 Pin Configuration
Note:
Channel
0
1
2
* These are the external I/O pin names. In the text, clock I/O pins are referred to as KCLK
KCLK out
Keyboard buffer controller
KCLK in
Input/Output Pins
KD out
and data I/O pins as KD, omitting the channel designations.
KD in
System side
Name
KBC clock I/O pin (KCLK0)
KBC data I/O pin (KD0)
KBC clock I/O pin (KCLK1)
KBC data I/O pin (KD1)
KBC clock I/O pin (KCLK2)
KBC data I/O pin (KD2)
(This LSI)
Figure 17.2 Keyboard Buffer Controller Connection
Vcc
Abbreviation *
PS2AC
PS2AD
PS2BC
PS2BD
PS2CC
PS2CD
Vcc
Clock
Data
Rev. 3.00 Mar 21, 2006 page 491 of 788
Section 17 Keyboard Buffer Controller
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Keyboard side
Function
KBC clock input/output
KBC data input/output
KBC clock input/output
KBC data input/output
KBC clock input/output
KBC data input/output
I/F
REJ09B0300-0300
KCLK in
KCLK out
KD in
KD out