MC68MH360ZP25VL Freescale Semiconductor, MC68MH360ZP25VL Datasheet - Page 61

• Manufacturer Part Number: MC68MH360ZP25VL
• Description: IC MPU QUICC ETHER 25MHZ 357PBGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68MH360ZP25VL

• Processor Type: M683xx 32-Bit
• Speed: 25MHz
• Voltage: 3.3V
• Mounting Type: Surface Mount
• Package / Case: 357-PBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -

Chapter 3
QMC Commands
30
30
The host issues commands to the QMC by writing to the command register (CR). The QMC
commands are similar to those of standard QUICC HDLC protocol. The CR format for
QMC is shown in Figure 3-1.
3.1 Transmit Commands
The stop transmit command disables the transmission of data on the selected channel and
clears the POL bit in the CHAMR register. Upon asserting this command in the middle of
a frame, the RISC processor sends an ABORT indication (7F) followed by IDLEs or
FLAGs, depending on the mode, on the selected channel. If this command is issued
between frames, the RISC processor continues sending IDLEs or FLAGs (depending on the
IDLM mode bit in the CHAMR register) in this channel.
The Tx buffer descriptor pointer (TBPTR) is not advanced to the next buffer; see Table 2-4
and Section 2.2, “Global Multichannel Parameters.”
Set (1) the POL bit to start transmission or to continue after a stop command.
Only after transmission start for a deactivated channel, which is identified by a cleared (0)
V bit in the time slot assignment table or a cleared (0) ENT bit, is it necessary to initialize
ZISTATE and TSTATE before setting (1) the POL bit.
To deactivate a channel, clear the V bit in the TSA table and the ENT bit in the channel
mode register (CHAMR).
RST
0
Note: For the 68360, the bit numbering is reversed. See Appendix A for more information.
STOP TRANSMIT <channel> (QMC opcode = 001)
1
QMC OPCODE
2
Freescale Semiconductor, Inc.
3
For More Information On This Product,
4
1
Figure 3-1. Command Register (CR)
5
1
Go to: www.freescale.com
Chapter 3. QMC Commands
6
1
7
0
8
0
9
10
CHANNEL NUMBER
11
12
13
14
–
FLG
15