S9S12HY64J0MLH Freescale Semiconductor, S9S12HY64J0MLH Datasheet - Page 454

• Manufacturer Part Number: S9S12HY64J0MLH
• Description: MCU 64K FLASH AUTO 64-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of S9S12HY64J0MLH

• Core Processor: HCS12
• Core Size: 16-Bit
• Speed: 32MHz
• Connectivity: CAN, EBI/EMI, I²C, IrDA, LIN, SCI, SPI
• Peripherals: LCD, Motor control PWM, POR, PWM, WDT
• Number Of I /o: 50
• 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): 4.5 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 64-LQFP
• Controller Family/series: S12
• No. Of I/o's: 50
• Ram Memory Size: 4KB
• Cpu Speed: 64MHz
• No. Of Timers: 2
• Rohs Compliant: Yes
• Processor Series: S12HY
• Core: HCS12
• 3rd Party Development Tools: EWHCS12
• Development Tools By Supplier: DEMO9S12HY64
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Serial Communication Interface (S12SCIV5)
12.4.6.6.1
In this wakeup method, an idle condition on the RXD pin clears the RWU bit and wakes up the SCI. The
initial frame or frames of every message contain addressing information. All receivers evaluate the
addressing information, and receivers for which the message is addressed process the frames that follow.
Any receiver for which a message is not addressed can set its RWU bit and return to the standby state. The
RWU bit remains set and the receiver remains on standby until another idle character appears on the RXD
pin.
Idle line wakeup requires that messages be separated by at least one idle character and that no message
contains idle characters.
The idle character that wakes a receiver does not set the receiver idle bit, IDLE, or the receive data register
full flag, RDRF.
The idle line type bit, ILT, determines whether the receiver begins counting logic 1s as idle character bits
after the start bit or after the stop bit. ILT is in SCI control register 1 (SCICR1).
12.4.6.6.2
In this wakeup method, a logic 1 in the most significant bit (MSB) position of a frame clears the RWU bit
and wakes up the SCI. The logic 1 in the MSB position marks a frame as an address frame that contains
addressing information. All receivers evaluate the addressing information, and the receivers for which the
message is addressed process the frames that follow.Any receiver for which a message is not addressed can
set its RWU bit and return to the standby state. The RWU bit remains set and the receiver remains on
standby until another address frame appears on the RXD pin.
The logic 1 MSB of an address frame clears the receiver’s RWU bit before the stop bit is received and sets
the RDRF flag.
Address mark wakeup allows messages to contain idle characters but requires that the MSB be reserved
for use in address frames.
12.4.7
Normally, the SCI uses two pins for transmitting and receiving. In single-wire operation, the RXD pin is
disconnected from the SCI. The SCI uses the TXD pin for both receiving and transmitting.
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Single-Wire Operation
Idle Input line Wakeup (WAKE = 0)
Address Mark Wakeup (WAKE = 1)
With the WAKE bit clear, setting the RWU bit after the RXD pin has been
idle can cause the receiver to wake up immediately.
Figure 12-30. Single-Wire Operation (LOOPS = 1, RSRC = 1)
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
Transmitter
Receiver
NOTE
RXD
TXD
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