MC68HC908JB8JDW Freescale Semiconductor, MC68HC908JB8JDW Datasheet - Page 229

• Manufacturer Part Number: MC68HC908JB8JDW
• Description: IC MCU 8K FLASH 3MHZ 20-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908JB8JDW

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 3MHz
• Connectivity: USB
• Peripherals: LVD, POR, PWM
• Number Of I /o: 13
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

KBA0
KBA7
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Freescale Semiconductor
TO PULLUP ENABLE
TO PULLUP ENABLE
Addr.
$0016 Keyboard Status and Control
$0017
KBIE0
KBIE7
Keyboard Interrupt Enable
Register Name
.
.
.
(KBSCR)
Register
Register
(KBIER)
Figure 14-1. Keyboard Module Block Diagram
Reset:
Reset:
Read:
Read:
Write:
Write:
Table 14-2. I/O Register Summary
KBIE7
Keyboard Interrupt Module (KBI)
Bit 7
MODEK
0
0
0
V
REG
= Unimplemented
KBIE6
D
CK
6
0
0
0
CLR
Q
KBIE5
INTERRUPT FF
5
0
0
0
KEYBOARD
KBIE4
4
0
0
0
RESET
ACKK
KBIE3
KEYF
3
0
0
VECTOR FETCH
INTERNAL BUS
Keyboard Interrupt Module (KBI)
DECODER
IMASKK
SYNCHRONIZER
ACKK
KBIE2
2
0
0
0
Pin Name Conventions
IMASKK
KBIE1
1
0
0
Technical Data
KEYF
MODEK
KBIE0
Bit 0
Keyboard
Interrupt
Request
0
0
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