參數(shù)資料
型號(hào): 9S12XDP512DGV2
英文描述: Device User Guide for Mask Set L15Y - (Second Silicon - Enhanced Feature Set)
中文描述: 設(shè)備用戶指南掩模組L15Y - (二硅-增強(qiáng)的功能集)
文件頁(yè)數(shù): 91/152頁(yè)
文件大小: 1231K
代理商: 9S12XDP512DGV2
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91
4.2.4 Voltage Regulator Pin Control
The logic level on the voltage regulator enable VREGEN pin determines whether the on chip voltage
regulator is used or not.
4.2.5 Register visibility in Emulation and Expanded modes
Table 4-6
shows a list of registers which may need to be "re-built" externally when using the
MC9S12XDP512 in emulation modes. The notation "RE" and "RI" in the table refers to the source of the
read data for the registers in each mode. In some cases the write data should update both the internal
registerand the external bus “WG".The change to the internal registersshould have the same effect on the
device operation when it is external.
RI: Read internal only, RE: Read external only, R0: Ready always 0
WI: write internal only, WG: Write int & ext, NW: No write
Table 4-6 Register Accessibility of Port Replacement Registers (PRR)
Table 4-5 Voltage Regulator VREGEN
VREGEN
Description
1
Internal Voltage Regulator enabled
Internal Voltage Regulator disabled, VDD1,2 and
VDDPLL must be supplied externally with 2.5V
0
Single Chip modes
Special
Single
Chip
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
R0/NW
R0/NW
Expanded Modes
Normal
Expanded
Mode
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
R0/NW
R0/NW
Port/Address
Module
Normal
Single
Chip
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
R0/NW
R0/NW
Emulation
Single
Chip
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
R0/NW
R0/NW
Emulation
Expanded
Mode
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
RE/WG
R0/NW
R0/NW
Special
Test Mode
PORTA/$0000
PORTB/$0001
DDRA/$0002
DDRB/$0003
PORTC/$0004
PORTD/$0005
DDRC/$0006
DDRD/$0007
PORTE/$0008
DDRE/$0009
EIFCTL/$000A
MODE/$000B
PUCR/$000C
RDRIV/$000D
RSVD/$000E
RSVD/$000F
PIM
PIM
PIM
PIM
PIM
PIM
PIM
PIM
PIM
PIM
EBI
EBI
PIM
PIM
EBI
EBI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
RI/WI
R0/NW
R0/NW
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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