STC4130 Datasheet, PDF (17/44 Pages) List of Unclassifed Manufacturers – Synchronous Clock for SETS

STC4130
Synchronous Clock for SETS
Data Sheet
Processor Interface Descriptions
The STC4130 supports four common microprocessor control interfaces: SPI, Motorola, Intel, and multiplex
parallel. The control interface mode is selected with the Bus_Mode(0/1) pins:
Bus_Mode1,
Bus_Mode0
00
01
10
11
Bus Mode
SPI
Motorola
Intel
Multiplex parallel
The following sections describe each bus mode’s interface timing:
SPI Bus Mode
The SPI interface bus mode uses the BUS_CS, BUS_ALE, BUS_WRB, and BUS_RDY pins, corresponding to
CS, SCLK, SDI, and SDO respectively, with timing as shown in figures 9 and 10:
Serial Bus Timing
CS
t_CS
1
2
3
4
5
6
7
SCLK
t_Ds
t_Dh
t_CH
t_CL
SDI
A6 A5 A4 A3 A2 A1 A0
MSB
LSB
SDO
t_CSHLD
t_CSMIN
t_CSTRI
8
9
10 11 12 13 14 15 16
0
t_DRDY
t_DHLD
D7 D6 D5 D4 D3 D2 D1 D0
MSB
LSB
Figure 9: Serial Bus Timing, Read access
CS
t_CS
t_CSHLD
t_CSMIN
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16
SCLK
t_Ds
t_Dh
t_CH
t_CL
SDI
A6 A5 A4 A3 A2 A1 A0 1 D7 D6 D5 D4 D3 D2 D1 D0
MSB
LSB MSB
LSB
Figure 10: Serial Bus Timing, Write access
Data Sheet #: TM084 Page 17 of 44 Rev: P02 Date: 12/5/06
© Copyright 2006 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice