PSB3186FV14XT Lantiq, PSB3186FV14XT Datasheet - Page 31

• Manufacturer Part Number: PSB3186FV14XT
• Manufacturer: Lantiq

Specifications of PSB3186FV14XT

• Number Of Line Interfaces: 1
• Control Interface: HDLC
• Lead Free Status / Rohs Status: Compliant

Header 41
This sequence allows in front of the A-D-D-D write access a non-interleaved A-D-A-D
read access. This mode is useful for reading status information before writing to the
HDLC XFIFO. The termination condition of the read access is the reception of the wradr.
The sequence can have any length and is terminated by the rising edge of CS.
Example for a read/write access with header 41
Header 49
This sequence allows in front of the A-D-D-D write access an interleaved A-D-A-D read
access. This mode is useful for reading status information before writing to the HDLC
XFIFO. The termination condition of the read access is the reception of the wradr. The
sequence can have any length and is terminated by the rising edge of the CS line.
Example for a read/write access with header 49
3.2.2
The 8-bit parallel microcontroller interface with address decoding on chip allows easy
and fast microcontroller access.
The parallel interface of the ISAC-SX TE provides three types of m P buses which are
selected via pin ALE. The bus operation modes with corresponding pins are listed in
Table
Table 5
(1)
(2)
(3)
The occurrence of an edge on ALE, either positive or negative, at any time during the
operation immediately selects the interface type (3). A return to one of the other interface
types is possible only if a hardware reset is issued.
Data Sheet
SDR header rdadr
SDR header rdadr
SDX
SDX
Bus Mode
Motorola
Siemens/Intel non-multiplexed
Siemens/Intel multiplexed
5.
H
H
Parallel Microcontroller Interface
: Non-interleaved A-D-D-D Sequence
: Interleaved A-D-D-D Sequence
Bus Operation Modes
rddata
rddata rddata
rdadr
wradr wrdata
rdadr
31
rddata
(wradr)
Pin ALE
V
V
Edge
DD
SS
H
H
:
:
wrdata
wradr wrdata
Description of Functional Blocks
(wradr)
Control Pins
CS, R/W, DS
CS, WR, RD
CS, WR, RD, ALE
wrdata
(wradr)
(wradr)
wrdata
(wradr)
ISAC-SX TE
PSB 3186
wrdata
2003-01-30
(wradr)