S9S12P64J0MFT Freescale Semiconductor, S9S12P64J0MFT Datasheet - Page 144
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S9S12P64J0MFT
Manufacturer Part Number
S9S12P64J0MFT
Description
MCU 64K FLASH AUTO 48-QFN
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet
1.S9S12P32J0MFT.pdf
(566 pages)
Specifications of S9S12P64J0MFT
Core Processor
HCS12
Core Size
16-Bit
Speed
32MHz
Connectivity
CAN, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
34
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.72 V ~ 5.5 V
Data Converters
A/D 10x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
48-QFN Exposed Pad
Processor Series
S12P
Core
HCS12
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
KIT33812ECUEVME, DEMO9S12PFAME
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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Background Debug Module (S12SBDMV1)
earlier. Synchronization between the host and target is established in this manner at the start of every bit
time.
Figure 5-7
target system. The host is asynchronous to the target, so there is up to a one clock-cycle delay from the
host-generated falling edge to where the target recognizes this edge as the beginning of the bit time. Ten
target clock cycles later, the target senses the bit level on the BKGD pin. Internal glitch detect logic
requires the pin be driven high no later that eight target clock cycles after the falling edge for a logic 1
transmission.
Since the host drives the high speedup pulses in these two cases, the rising edges look like digitally driven
signals.
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.
144
Start of Bit Time
(Target MCU)
BDM Clock
Transmit 1
Transmit 0
Perceived
shows an external host transmitting a logic 1 and transmitting a logic 0 to the BKGD pin of a
Host
Host
Synchronization
Uncertainty
Figure 5-7. BDM Host-to-Target Serial Bit Timing
S12P-Family Reference Manual, Rev. 1.13
Figure 5-8
10 Cycles
shows the host receiving a logic 1 from the target
Target Senses Bit
Freescale Semiconductor
Next Bit
Earliest
Start of
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