MC68360EM25VL Freescale Semiconductor, MC68360EM25VL Datasheet - Page 419
MC68360EM25VL
Manufacturer Part Number
MC68360EM25VL
Description
IC MPU QUICC 25MHZ 240-FQFP
Manufacturer
Freescale Semiconductor
Datasheets
1.MC68EN360VR25L.pdf
(14 pages)
2.MC68EN360VR25L.pdf
(2 pages)
3.MC68360AI25L.pdf
(962 pages)
Specifications of MC68360EM25VL
Processor Type
M683xx 32-Bit
Speed
25MHz
Voltage
3.3V
Mounting Type
Surface Mount
Package / Case
240-FQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Features
-
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the bits that are enabled by the transmitter route RAM and will three-state L1TXDx other-
wise.
7.8.6.2 IDL INTERFACE PROGRAMMING. The user can program the channels used for
the IDL bus interface to the appropriate configuration. First, the user should program the
SIMODE to the IDL grant mode for that channel, using the GMx bits. The user can program
more than one channel to interface to the IDL bus. If the receive and transmit section are
used for interfacing to the same IDL bus, the user can internally connect the receive clock
and sync signals to the SI RAM transmit section, using the CRTx bits. The user has to pro-
gram the RAM section used for the IDL channels to the desired routing. (An example is
shown in 7.8.4.6 SI RAM Programming Example.) The user should then define the IDL
frame structure to be a delay of 1 bit from frame sync to data, to falling edge sample sync,
and the clock edge to transmit on the rising edge of the clock. The L1TXDx pin should be
programmed to be three-stated when inactive (through the parallel I/O open-drain register).
To support the D channel, the user must program the appropriate GRx bit in SIMODE and
program the RAM entry to route data to that serial controller. The two definitions of IDL, 8
bits and 10 bits, are supported by only modifying the SI RAM programming. In both cases,
the L1GRx pin will be sampled with the L1TSYNCx signal and transferred to the D channel
SCC as a grant indication. The same procedure is valid for supporting an IDL bus in the sec-
ond channel.
For example, assuming the 7.8.4.6 SI RAM Programming Example, which uses SCC1,
SCC2, and SCC4, connected to the TDMx pins, with no other SCCs connected, the initial-
ization sequence is as follows:
1. Program the SI RAM. Write all entries that are not used with $0001, setting
2. SIMODE = $00000145. Only TDMa is used; the SMCs are not connected.
3. SICR = $400040C0. Only SCC4, SCC2, and SCC1 are connected to the TSA.
4. PAODR bit 6 = 1. Configures L1TXDa to an open-drain output.
the LST bit and disabling the routing function.
SCC1 supports the grant mechanism since it is on the D channel.
Since IDL requires the same routing for both receive and trans-
mit, an exact duplicate of the above entries should be written to
both the receive and transmit sections of the SI RAM beginning
at SI RAM addresses 0 and 128, respectively.
Entry
No.
1
2
3
4
5
SWTR
0
0
0
0
0
Freescale Semiconductor, Inc.
For More Information On This Product,
SSEL
0000
0000
0000
0000
0001
MC68360 USER’S MANUAL
Go to: www.freescale.com
CSEL
010
001
000
100
001
0000
0000
0000
0000
0000
CNT
NOTE
RAM Word
BYT
1
0
0
1
0
Serial Interface with Time Slot Assigner
LST
0
0
0
0
1
1 Bit SCC1 Strobe1
1 Bit No Support
description
8 Bits SCC2
8 Bits SCC4
1 Bit SCC1
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