MC145572PB Freescale Semiconductor, MC145572PB Datasheet - Page 76

• Manufacturer Part Number: MC145572PB
• Manufacturer: Freescale Semiconductor

Specifications of MC145572PB

• Number Of Line Interfaces: 1
• Control Interface: HDLC
• Lead Free Status / Rohs Status: Not Compliant

5–4
5.3
NOTES:
CONTROL INTERFACES
When operated in MCU mode, MC145572 has two configurations that provide MCU access to its inter-
nal register set. The SPC mode is a four–wire serial interface that clocks data into or out of MC145572
at data rates up to 4 Mbps. This interface is compatible with National’s MICROWIRE
PCP mode configures MC145572 to have an eight–bit parallel data port that can be located anywhere
in processor memory. The PCP mode is enabled when the MCU/GCI pin is tied to a 1 and the PAR/SER
pin is tied to a 1. The SCP mode is enabled when the MCU/GCI pin is tied to a 1 and the PAR/SER
pin is tied to a 0.
Pin No.
PLCC
1. In NT mode, IN1 and IN2 carry PS1 and PS2 data.
2. DISS is OR’d into this output.
3. When IDL2 interface is operating in GCI electrical mode, this pin is named FSC.
4. When IDL2 interface is operating in GCI electrical mode, this pin is unused.
5. SFAX is muxed onto this pin.
6. 20.48 MHz, SFAR, and TSEN are muxed onto this pin.
7. DCHCLK and TxOFF are muxed onto this pin.
8. DCH in and TxMAG are muxed onto this pin.
9. DCH out and TxSIGN are muxed onto this pin.
17
21
20
18
19
27
28
31
29
30
34
35
38
26
25
39
40
41
When MC145572 is configured for MCU operation, it is possible to put the IDL2 interface
pins into GCI Electrical mode, which accepts GCI timing for transfer of 2B+D data only.
This is done by setting bit OR6(b3) GCI Mode Enable. Access to the MC145572 register
set is via the SCP or PCP. In GCI Electrical mode, the pin names and functions for IDL2
interface pins correspond to the GCI names and function.
Pin No.
TQFP
44
10
11
14
12
13
17
18
21
22
23
24
4
3
1
2
9
8
Table 5–2. Pin Function per Mode and MC14LC5472 Comparison
Freescale Semiconductor, Inc.
EYEDATA (Note 7)
SYSCLK (Note 6)
RxBCLK (Note 9)
TxBCLK (Note 8)
TxSFS (Note 5)
4.096 CLKOUT
15.36 CLKOUT
For More Information On This Product,
FSR (Note 3)
FSX (Note 4)
MCU/SCP
BUFXTAL
SCPCLK
SCPEN
SCPRx
SCPTx
Mode
D out
DCL
IRQ
D in
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MC145572 Function
SYSCLK (Note 6)
TxSFS (Note 5)
FSR (Note 3)
FSX (Note 4)
MC145572
MCU/PCP
Mode
D out
R/W
DCL
IRQ
D in
CS
D0
D1
D2
D3
D4
D5
D6
D7
NOTE
4.096 CLKOUT
15.36 CLKOUT
OUT1 (Note 2)
IN1 (Note 1)
IN2 (Note 1)
GCI Master
BUFXTAL
Not Used
Not Used
Not Used
CLKSEL
Mode
OUT2
FSC
DCL
D out
D in
S0
S1
S2
4.096 CLKOUT
15.36 CLKOUT
OUT1 (Note 2)
GCI Slave
BUFXTAL
Not Used
Not Used
Not Used
FREF out
Mode
OUT2
D out
FSC
DCL
IN1
IN2
D in
S0
S1
S2
4.096 CLK OUT
15.36 CLK OUT
Rx BAUD CLK
Not Applicable
Tx BAUD CLK
MC14LC5472
BUF XTAL
EYE DATA
interface. The
IDL SYNC
Function
SCPCLK
SYSCLK
IDL CLK
SCP Rx
MOTOROLA
SCPEN
SCP Tx
Tx SFS
IDL Rx
IDL Tx
IRQ