Datasheet

Table Of Contents
Analog to Digital Converter
Block Diagram
MC9S12DP256 — Revision 1.1
Analog to Digital Converter
Block Diagram
Figure 108 ATD Module Block Diagram
+
-
COMPARATOR
CDAC
DDAC
BIAS
HV
CHARGE
PUMP
MUX
MUX
MUX
MUX
MUX
MUX
PORT
PINS
SAMPLE
AMP
IPBI
Latches
IP BUS
addr(15:0)
ctl
db(15:0)
Input
Port Reg
Data Bus
Buffers
Clock
Gen
Control
atd module clk
Result Registers
Shifter
RDAC
Rinterface Cinterface
Dinterface
SAR Register
A/D State Machine
Port
Write Port
Read
Port
S/H State Machine
Timing Gen.
Ctl
Ctl
Ctl
Ctl
Ctl
Ctl
Sample
Existing Approx.
End
Sample
Control Registers
Conversion Mode
Control Block
Clk
Clk
Clk
Prescaler
Control
Data
Ctl
Ctl
Ctl
Ctl
Ctl
Status
State
State
Ctl
MBIADB
MBIBDB
CUSTOM ANALOG
Freescale Semiconductor, I
Freescale Semiconductor, Inc.
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