MC68HC58 Motorola, MC68HC58 Datasheet - Page 96

• Manufacturer Part Number: MC68HC58
• Description: Data Link Controller
• Manufacturer: Motorola

C.2 Configuration Byte Register
CBR — Configuration Byte Register
C-2
MOTOROLA
RESET:
TM
7
0
Table C-8 Internal Clock Frequency Field (OSCD)
6
0
OSCD
Value
Value
00
01
10
11
0
1
TC
Table C-5 Test Configuration Field (TC)
Table C-9 High-Speed Control Bit (4X)
Table C-4 Test Mode Control Bit (TM)
Value
Value
Value
Value
Table C-7 Interrupt Mode Bit (IMOD)
Table C-6 Interrupt Mask Bit (IMSK)
00
0
1
–
0
1
0
1
5
0
Divisor
Clock
Additional interrupt source added to default sources
1
2
3
4
Default interrupts are the only ones enabled
IMSK
All interrupts to the MCU are disabled
4
0
All interrupts to the MCU are enabled
0.66 MHz 1.33 MHz
DLC REGISTERS
500 kHz
2 MHz
2 MHz
1 MHz
4 times normal clock speed
Normal clock division
IMOD
Normal operation
3
0
Normal mode
Description
Description
Description
Description
Description
Factory test
Test Mode
4 MHz
4 MHz
2 MHz
1 MHz
External Clock
2
1
OSCD
1.5 MHz
6 MHz
6 MHz
3 MHz
2 MHz
1
1
2.66 MHz
8 MHz
8 MHz
4 MHz
2 MHz
4X
0
0
TECHNICAL DATA
MC68HC58