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S12ECT16B8CV2 Datasheet(PDF) 91 Page - NXP Semiconductors

Part # S12ECT16B8CV2
Description  MC9S12XDP512 Device User Guide
PDF  152 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

S12ECT16B8CV2 Datasheet(HTML) 91 Page - NXP Semiconductors

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MC9S12XDP512 Device User Guide — 9S12XDP512DGV1/D V01.12
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
register and the external bus “WG". The change to the internal registers should 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 4-5 Voltage Regulator VREGEN
VREGEN
Description
1
Internal Voltage Regulator enabled
0
Internal Voltage Regulator disabled, VDD1,2 and
VDDPLL must be supplied externally with 2.5V
Table 4-6 Register Accessibility of Port Replacement Registers (PRR)
Single Chip modes
Expanded Modes
Port/Address
Module
Special
Single
Chip
Normal
Single
Chip
Emulation
Single
Chip
Normal
Expanded
Mode
Emulation
Expanded
Mode
Special
Test Mode
PORTA/$0000
PIM
RI/WI
RI/WI
RE/WG
RI/WI
RE/WG
RI/WI
PORTB/$0001
PIM
RI/WI
RI/WI
RE/WG
RI/WI
RE/WG
RI/WI
DDRA/$0002
PIM
RI/WI
RI/WI
RE/WG
RI/WI
RE/WG
RI/WI
DDRB/$0003
PIM
RI/WI
RI/WI
RE/WG
RI/WI
RE/WG
RI/WI
PORTC/$0004
PIM
RI/WI
RI/WI
RE/WG
RI/WI
RE/WG
RI/WI
PORTD/$0005
PIM
RI/WI
RI/WI
RE/WG
RI/WI
RE/WG
RI/WI
DDRC/$0006
PIM
RI/WI
RI/WI
RE/WG
RI/WI
RE/WG
RI/WI
DDRD/$0007
PIM
RI/WI
RI/WI
RE/WG
RI/WI
RE/WG
RI/WI
PORTE/$0008
PIM
RI/WI
RI/WI
RE/WG
RI/WI
RE/WG
RI/WI
DDRE/$0009
PIM
RI/WI
RI/WI
RE/WG
RI/WI
RE/WG
RI/WI
EIFCTL/$000A
EBI
RI/WI
RI/WI
RE/WG
RI/WI
RE/WG
RI/WI
MODE/$000B
EBI
RI/WI
RI/WI
RE/WG
RI/WI
RE/WG
RI/WI
PUCR/$000C
PIM
RI/WI
RI/WI
RE/WG
RI/WI
RE/WG
RI/WI
RDRIV/$000D
PIM
RI/WI
RI/WI
RE/WG
RI/WI
RE/WG
RI/WI
RSVD/$000E
EBI
R0/NW
R0/NW
R0/NW
R0/NW
R0/NW
R0/NW
RSVD/$000F
EBI
R0/NW
R0/NW
R0/NW
R0/NW
R0/NW
R0/NW
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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