mc68hc05ct4fn Freescale Semiconductor, Inc, mc68hc05ct4fn Datasheet - Page 77

• Manufacturer Part Number: mc68hc05ct4fn
• Description: Mc68hc05 Family Of Microcontrollers Mcus
• Manufacturer: Freescale Semiconductor, Inc

9.7 SSI Power Supply Source
MC68HC05CT4
—
Rev. 2.0
this occurrence, the programmer should ensure that all transfers are
complete before entering the stop mode.
If the SSI is configured to slave mode, further care should be taken in
entering stop mode. The SCK pin will still accept a clock from an external
master, allowing potentially unwanted transfers to take place and power
consumption to be increased. The SSI will not generate interrupt
requests in this situation but, on exiting stop mode through some other
means, the SF flag may be found to be set and an interrupt request will
be generated if SIE is also set at this point.
To avoid these potential problems, it is safer to disable the SSI
completely (SE = 0) before entering stop mode.
The synchronous serial interface (SSI) is a 2-wire master/slave system
including serial clock (SCK) and serial data input/output (SDIO). When
operating as a master device, the serial clock speed is selectable
between four rates.
The power supplied to the SSI is V
and V
Freescale Semiconductor, Inc.
For More Information On This Product,
SS2
Synchronous Serial Interface (SSI)
free for the noise susceptible modules.
Go to: www.freescale.com
DD
and V
Synchronous Serial Interface (SSI)
SS
General Release Specification
, thus keeping the V
SSI Power Supply Source
DD2