MC145572APB Freescale Semiconductor, MC145572APB Datasheet - Page 79

• Manufacturer Part Number: MC145572APB
• Description: IC ISDN INTERFACE TXCVER 44-LQFP
• Manufacturer: Freescale Semiconductor
• Type: Transceiverr

Specifications of MC145572APB

• Protocol: RS232
• Voltage - Supply: 5V
• Mounting Type: Surface Mount
• Package / Case: 44-LQFP
• Number Of Line Interfaces: 1
• Control Interface: HDLC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Drivers/receivers: -
• Lead Free Status / Rohs Status: Not Compliant

MOTOROLA
5.3.1.2
REGISTER R6 OPERATION
The 12–bit Nibble register 6 is located at nibble register address 6 and can be accessed with two
sequential 8–bit SCP interface operations, as shown in Figures 5–5 and 5–6. In this case, the second
8–bit operation accesses the last 8 data bits (D7:D0) as shown. Alternatively, this register can be ac-
cessed with a single 16–bit operation, as shown in Figures 5–7 and 5–8. See Register R6 description
in Section 4.3.7 for correspondence between the ANSI defined eoc bits and the data bits transferred
over the SCP interface.
SCPCLK
SCPCLK
SCPEN
SCPRx
SCPEN
SCPTx
SCPRx
SCPTx
Figure 5–5. SCP eoc Register R6 Write Operation Using Double 8
Figure 5–6. SCP eoc Register R6 Read Operation Using Double 8
HIGH IMPEDANCE
R/W
R/W
Freescale Semiconductor, Inc.
For More Information On This Product,
A2
A2
A1
A1
Go to: www.freescale.com
A0
A0
D11
D11
D10
MC145572
D10
D9
D9
D8
D8
HIGH IMPEDANCE
DON'T CARE
DON'T CARE
DON'T CARE
D7
D7
DON'T CARE
D6
D6
D5
D5
D4
D4
D3
D3
–
–
D2
D2
Bit Transfer
Bit Transfer
D1
D1
D0
D0
5–7