mc908jl16 Freescale Semiconductor, Inc, mc908jl16 Datasheet - Page 41

• Manufacturer Part Number: mc908jl16
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Chapter 3
Configuration and Mask Option Registers
(CONFIG and MOR)
3.1 Introduction
This section describes the configuration registers, CONFIG1 and CONFIG2; and the mask option register
(MOR).
The configuration registers enable or disable these options:
The mask option register selects the oscillator option:
Freescale Semiconductor
1. One-time writable register after each reset.
2. LVIT1 and LVIT0 reset to 0 by a power-on reset (POR) only.
3. Non-volatile FLASH register; write by programming.
$FFD0
$001E
$001F
Addr.
•
•
•
•
•
•
•
•
•
•
Computer operating properly module (COP)
COP timeout period (2
Internal oscillator during stop mode
Low voltage inhibit (LVI) module
LVI module voltage trip point selection
STOP instruction
Stop mode recovery time (32 or 4096 ICLK cycles)
Pull-up on IRQ pin
MMIIC pin selection
Crystal or RC
Configuration Register 2
Configuration Register 1
Register Name
Mask Option Register
(CONFIG2)
(CONFIG1)
(MOR)
(1)
(1)
(3)
Reset:
Reset:
Reset:
Read:
Read:
Read:
Write:
Write:
Write:
13
Figure 3-1. CONFIG Registers Summary
–2
OSCSEL
4
IRQPUD
COPRS
Bit 7
MC68HC908JL16 Data Sheet, Rev. 1.1
or 2
R
0
0
18
–2
= Reserved
4
R
R
R
6
0
0
ICLK cycles)
R
R
R
5
0
0
Unaffected by reset; $FF when blank
LVIT1
LVID
0
R
4
(2)
0
LVIT0
0
R
R
3
0
(2)
SSREC
R
R
2
0
0
IICSEL
STOP
R
1
0
0
ICLKDIS
STOP_
COPD
Bit 0
R
0
0
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