MC9S12NE64VTUE Freescale Semiconductor, MC9S12NE64VTUE Datasheet - Page 460
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MC9S12NE64VTUE
Manufacturer Part Number
MC9S12NE64VTUE
Description
IC MCU 64K FLASH EEPROM 80-TQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet
1.MC9S12NE64VTU.pdf
(554 pages)
Specifications of MC9S12NE64VTUE
Core Processor
HCS12
Core Size
16-Bit
Speed
25MHz
Connectivity
EBI/EMI, Ethernet, I²C, SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
38
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.375 V ~ 3.465 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
80-TQFP Exposed Pad, 80-eTQFP, 80-HTQFP, 80-VQFP
Processor Series
S12N
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
8 KB
Interface Type
I2C, SCI, SPI
Maximum Clock Frequency
125 MHz
Number Of Programmable I/os
70
Number Of Timers
4
Operating Supply Voltage
- 0.3 V to + 3 V
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
EVB9S12NE64E, DEMO9S12NE64E
Minimum Operating Temperature
- 65 C
On-chip Adc
10 bit, 8 Channel
Cpu Family
HCS12
Device Core Size
16b
Frequency (max)
25MHz
Total Internal Ram Size
8KB
# I/os (max)
70
Number Of Timers - General Purpose
4
Operating Supply Voltage (typ)
2.5/3.3V
Operating Supply Voltage (max)
2.625/3.465V
Operating Supply Voltage (min)
2.357/2.375/3.135V
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 105C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
80
Package Type
TQFP
For Use With
EVB9S12NE64E - BOARD EVAL FOR 9S12NE64DEMO9S12NE64E - DEMO BOARD FOR 9S12NE64
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S12NE64VTUE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC9S12NE64VTUE
Manufacturer:
FREESCALE
Quantity:
20 000
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Chapter 17 Background Debug Module (BDMV4)
17.4.7
BDM commands that require CPU execution are ultimately treated at the MCU bus rate. Because the BDM
clock source can be asynchronously related to the bus frequency, when CLKSW = 0, it is very helpful to
provide a handshake protocol in which the host could determine when an issued command is executed by
the CPU. The alternative is to always wait the amount of time equal to the appropriate number of cycles at
the slowest possible rate the clock could be running. This sub-section will describe the hardware
handshake protocol.
The hardware handshake protocol signals to the host controller when an issued command was successfully
executed by the target. This protocol is implemented by a 16 serial clock cycle low pulse followed by a
brief speedup pulse in the BKGD pin. This pulse is generated by the target MCU when a command, issued
by the host, has been successfully executed (see
After the ACK pulse has finished: the host can start the bit retrieval if the last issued command was a read
command, or start a new command if the last command was a write command or a control command
(BACKGROUND, GO, GO_UNTIL, or TRACE1). The ACK pulse is not issued earlier than 32 serial
clock cycles after the BDM command was issued. The end of the BDM command is assumed to be the
16th tick of the last bit. This minimum delay assures enough time for the host to perceive the ACK pulse.
Note also that, there is no upper limit for the delay between the command and the related ACK pulse,
because the command execution depends upon the CPU bus frequency, which in some cases could be very
slow compared to the serial communication rate. This protocol allows a great flexibility for the POD
designers, because it does not rely on any accurate time measurement or short response time to any event
in the serial communication.
460
(TARGET MCU)
ACK
TRANSMITS
BDM CLOCK
BKGD PIN
TARGET
PULSE
16th TICK OF THE
LAST COMMAD BIT
Serial Interface Hardware Handshake Protocol
If the ACK pulse was issued by the target, the host assumes the previous
command was executed. If the CPU enters WAIT or STOP prior to
executing a hardware command, the ACK pulse will not be issued meaning
that the BDM command was not executed. After entering wait or stop mode,
the BDM command is no longer pending.
HIGH-IMPEDANCE
32 CYCLES
Figure 17-10. Target Acknowledge Pulse (ACK)
MC9S12NE64 Data Sheet, Rev. 1.1
MINIMUM DELAY
FROM THE BDM COMMAND
Figure
NOTE
16 CYCLES
17-10). This pulse is referred to as the ACK pulse.
SPEEDUP PULSE
EARLIEST
START OF
NEXT BIT
HIGH-IMPEDANCE
Freescale Semiconductor
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