Master/Slave Mode Selection - Siemens C541U User Manual

6.3.5 Master/Slave Mode Selection

The selection whether the SSC operates in master mode or in slave mode has to be made
depending on the hardware configuration before the SSC will be enabled.
Normally a specific device will operate either as master or as slave unit. The SSC has no on-chip
support for multimaster configurations (switching between master and slave mode operation).
Operating the SSC as a master in a multimaster environment requires external circuitry for
swapping transmit and receive lines.
Master SSC
Px.x Px.y Px.z
Figure 6-15
Typical SSC System Configuration
Semiconductor Group
SCLK
STO
SRI
6-26
On-Chip Peripheral Components
SCLK
SRI
Slave SSC
STO
SLS
SCLK
SRI
Slave SSC
STO
SLS
SCLK
SRI
Slave SSC
STO
SLS
SCLK
SRI
Slave SSC
STO
SLS
C541U
Dedicated
Slave Select
Lines
Common
Slave Select
Lines
MCS02439
1999-04-01