MC68HC908AS60ACFN FREESCALE [Freescale Semiconductor, Inc], MC68HC908AS60ACFN Datasheet - Page 147

• Manufacturer Part Number: MC68HC908AS60ACFN
• Description: M68HC08 Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Chapter 12
Configuration Register (CONFIG-2)
12.1 Introduction
This chapter describes the configuration register (CONFIG-2). This register contains bits that configure
these options:
12.2 Functional Description
The configuration register is a write-once register. Out of reset, the configuration register will read the
default. Once the register is written, further writes will have no effect until a reset occurs.
AT60A — Device Indicator
EEDIVCLK — EEPROM Timebase Divider Clock Select Bit
MSCAND — MSCAN Disable Bit
Freescale Semiconductor
•
•
This read-only bit is used to distinguish an MC68HC908AS60A and MC68HC908AZ60A from older
non-’A’ suffix versions.
This bit selects the reference clock source for the EEPROM-1 and EEPROM-2 timebase divider
modules.
MSCAND disables the MSCAN module. (See
1 = ‘A’ version
0 = Non-’A’ version
1 = EExDIV clock input is driven by internal bus clock
0 = EExDIV clock input is driven by CGMXCLK
1 = MSCAN module disabled
0 = MSCAN Module enabled
Configures the device to either the MC68HC08AZxx emulator or the MC68HC08ASxx emulator
Disables the CAN module
Address:
Reset:
Read:
Write:
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
$FE09
EEDIV
Bit 7
CLK
R
0
Figure 12-1. Configuration Register (CONFIG-2)
= Reserved
R
6
0
R
5
0
MSCAND
Chapter 23 MSCAN Controller
4
1
AT60A
R
3
1
R
2
0
R
1
0
(MSCAN08)).
AZxx
Bit 0
0
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