MC9S12XDT512MAA Freescale, MC9S12XDT512MAA Datasheet - Page 585
MC9S12XDT512MAA
Manufacturer Part Number
MC9S12XDT512MAA
Description
Manufacturer
Freescale
Datasheet
1.MC9S12XDT512MAA.pdf
(1348 pages)
Specifications of MC9S12XDT512MAA
Cpu Family
HCS12
Device Core Size
16b
Frequency (max)
40MHz
Interface Type
CAN/I2C/SCI/SPI
Total Internal Ram Size
32KB
# I/os (max)
59
Number Of Timers - General Purpose
12
Operating Supply Voltage (typ)
2.5/5V
Operating Supply Voltage (max)
2.75/5.5V
Operating Supply Voltage (min)
2.35/3.15V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
80
Package Type
PQFP
Program Memory Type
Flash
Program Memory Size
512KB
Lead Free Status / RoHS Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S12XDT512MAA
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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The receive cases are more complicated.
system. Since the host is asynchronous to the target, there is up to one clock-cycle delay from the
host-generated falling edge on BKGD to the perceived start of the bit time in the target. The host holds the
BKGD pin low long enough for the target to recognize it (at least two target clock cycles). The host must
release the low drive before the target drives a brief high speedup pulse seven target clock cycles after the
perceived start of the bit time. The host should sample the bit level about 10 target clock cycles after it
started the bit time.
Freescale Semiconductor
Start of Bit Time
Start of Bit Time
Target System
(Target MCU)
(Target MCU)
BDM Clock
BDM Clock
BKGD Pin
BKGD Pin
Transmit 1
Transmit 0
Perceived
Perceived
Speedup
Drive to
Pulse
Host
Host
Host
Synchronization
Uncertainty
Figure 15-9. BDM Target-to-Host Serial Bit Timing (Logic 1)
High-Impedance
Figure 15-8. BDM Host-to-Target Serial Bit Timing
MC9S12XDP512 Data Sheet, Rev. 2.21
10 Cycles
R-C Rise
Figure 15-9
10 Cycles
10 Cycles
Target Senses Bit
shows the host receiving a logic 1 from the target
Host Samples
High-Impedance
Chapter 15 Background Debug Module (S12XBDMV2)
BKGD Pin
High-Impedance
Next Bit
Earliest
Start of
Next Bit
Earliest
Start of
585
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