MC145572AACR2 Freescale Semiconductor, MC145572AACR2 Datasheet - Page 78
MC145572AACR2
Manufacturer Part Number
MC145572AACR2
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.MC145572AACR2.pdf
(264 pages)
Specifications of MC145572AACR2
Number Of Line Interfaces
1
Control Interface
HDLC
Lead Free Status / Rohs Status
Compliant
- Current page: 78 of 264
- Download datasheet (2Mb)
5–6
5.3.1.1
NIBBLE REGISTER OPERATION
The 4–bit nibble registers are accessed via an 8–bit SCP interface operation, as shown in Figure 5–3
for a write operation and Figure 5–4 for a read operation. The first bit of the transfer on SCPRx is
a read/write (R/W) bit, indicating the purpose of the operation. This is followed by a 3–bit address
field (A2:A0), which specifies nibble address 0 through nibble address 5. (Nibble addresses 6 and
7 have other purposes, which are described later.) For a write operation, the 4–bit data word (D3:D0)
follows. For a read operation, the 4–bit data word (D3:D0) follows on the SCPTx pin.
SCPCLK
SCPCLK
SCPEN
SCPEN
SCPRx
SCPTx
SCPRx
SCPTx
R/W
R/W
Freescale Semiconductor, Inc.
Figure 5–3. SCP Nibble Registers 0 – 5, Write Operation
Figure 5–4. SCP Nibble Registers 0 – 5, Read Operation
For More Information On This Product,
A2
A2
A1
A1
Go to: www.freescale.com
A0
A0
D3
D3
MC145572
D2
D2
D1
D1
D0
D0
HIGH IMPEDANCE
HIGH IMPEDANCE
DON'T CARE
DON'T CARE
DON'T CARE
DON'T CARE
MOTOROLA
Related parts for MC145572AACR2
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
ISDN U-INTERFACE TRANSCEIVER
Manufacturer:
Freescale Semiconductor
Part Number:
Description:
Multipliers / Dividers LOG CMOS OSILATR 24STAGE
Manufacturer:
ON Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet: