參數(shù)資料
型號: T7234
英文描述: Compliance with the New ETSI PSD Requirement
中文描述: 符合新的ETSI PSD的要求
文件頁數(shù): 43/116頁
文件大小: 1056K
代理商: T7234
Data Sheet
January 1998
T7256 Single-Chip NT1 (SCNT1) Transceiver
Lucent Technologies Inc.
39
Microprocessor Interface Description
(continued)
Timing
The microprocessor interface is compatible with any microprocessor that supports a synchronous serial micropro-
cessor port such as the following:
I
NEC
1
75402
I
Motorola
2
MC68HC05 and MC68302 SCP port
I
Intel
3
80C51
5-2300 (C)
Figure 12. NEC and Motorola Microprocessor Port Connections
The synchronous interface consists of the microprocessor input clock (SCK), serial data input (SDI), and serial
data output (SDO). A microprocessor interrupt lead (INT) is also included. These connections are shown in Figure
12 for applications using either NEC or Motorola microprocessors. Figure 13 shows the connections for applica-
tions using a multiplexed data out/in scheme such as the Intel 80C51 or equivalent.
5-2301 (C)
Figure 13. Intel Microprocessor Port Connections
1. NEC is a registered trademark of NEC Electronics, Inc.
2. Motorola is a registered trademark of Motorola, Inc.
3. Intel is a registered trademark of Intel Corporation.
NEC OR
Motorola
MICROPROCESSOR
INTERRUPT IN
CLOCK OUT
DATA IN
DATA OUT
T7256
SCK
SDO
SDI
11
15
14
12
INT
Intel
80C51
OR EQUIVALENT
MICROPROCESSOR
INTERRUPT IN
CLOCK OUT
DATA OUT/IN
T7256
SCK
SDO
SDI
11
15
14
12
INT
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