MC9S12NE64VTU Freescale Semiconductor, MC9S12NE64VTU Datasheet - Page 296
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MC9S12NE64VTU
Manufacturer Part Number
MC9S12NE64VTU
Description
IC MCU 25MHZ ETHERNET/PHY 80TQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet
1.MC9S12NE64VTU.pdf
(554 pages)
Specifications of MC9S12NE64VTU
Mfg Application Notes
MC9S12NE64 Integrated Ethernet Controller Implementing an Ethernet Interface with the MC9S12NE64 Web Server Development with MC9S12NE64 and Open TCP
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
Data Bus Width
16 bit
Data Ram Size
8 KB
Interface Type
I2C, SCI, SPI
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
70
Number Of Timers
16 bit
Operating Supply Voltage
- 0.3 V to + 3 V
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 65 C
On-chip Adc
10 bit
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
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Chapter 10 Inter-Integrated Circuit (IICV2)
10.3.2.5
In master transmit mode, when data is written to the IBDR a data transfer is initiated. The most significant
bit is sent first. In master receive mode, reading this register initiates next byte data receiving. In slave
mode, the same functions are available after an address match has occurred.Note that the Tx/Rx bit in the
IBCR must correctly reflect the desired direction of transfer in master and slave modes for the transmission
to begin. For instance, if the IIC is configured for master transmit but a master receive is desired, then
reading the IBDR will not initiate the receive.
Reading the IBDR will return the last byte received while the IIC is configured in either master receive or
slave receive modes. The IBDR does not reflect every byte that is transmitted on the IIC bus, nor can
software verify that a byte has been written to the IBDR correctly by reading it back.
In master transmit mode, the first byte of data written to IBDR following assertion of MS/SL is used for
the address transfer and should com.prise of the calling address (in position D7:D1) concatenated with the
required R/W bit (in position D0).
296
Reset
RXAK
Field
SRW
IBIF
2
1
0
W
R
Slave Read/Write — When IAAS is set this bit indicates the value of the R/W command bit of the calling address
sent from the master
This bit is only valid when the I-bus is in slave mode, a complete address transfer has occurred with an address
match and no other transfers have been initiated.
Checking this bit, the CPU can select slave transmit/receive mode according to the command of the master.
0 Slave receive, master writing to slave
1 Slave transmit, master reading from slave
I-Bus Interrupt — The IBIF bit is set when one of the following conditions occurs:
It will cause a processor interrupt request if the IBIE bit is set. This bit must be cleared by software, writing a one
to it. A write of 0 has no effect on this bit.
Received Acknowledge — The value of SDA during the acknowledge bit of a bus cycle. If the received
acknowledge bit (RXAK) is low, it indicates an acknowledge signal has been received after the completion of 8
bits data transmission on the bus. If RXAK is high, it means no acknowledge signal is detected at the 9th clock.
0 Acknowledge received
1 No acknowledge received
D7
IIC Data I/O Register (IBDR)
0
7
— Arbitration lost (IBAL bit set)
— Byte transfer complete (TCF bit set)
— Addressed as slave (IAAS bit set)
D6
0
6
Table 10-7. IBSR Field Descriptions (continued)
Figure 10-8. IIC Bus Data I/O Register (IBDR)
D5
MC9S12NE64 Data Sheet, Rev. 1.1
0
5
D4
0
4
Description
D3
0
3
D2
0
2
Freescale Semiconductor
D1
0
1
D0
0
0
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