HCS08 Full Chip Simulation
Peripheral Modules Commands
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Microcontrollers Debugger Manual
Figure 18.25 Memory Component Window
If the MTIM interrupt is enabled, the FCS jumps to an appropriate subroutine as long as
the MTIM interrupt vector is properly defined.
Serial Communications Interface Module
In FCS, this module simulates all functionality of the Serial Peripheral Interface (SPI)
module including:
• Flag polling
• Interrupt enabled mode
• 8- or 9-bit length data codes
• Odd and even parity modes
• Transmission and reception of external data
FCS mode uses the buffered input/output structure to simulate SCI inputs. The user can
queue up to 256 data values into the input buffer. The output buffer of the SCI module can
also hold 256 output values. To queue the SCI Input Data, use the SCDI <n> command
in the command prompt. If <n> (the data parameter) is given, the value is placed into the
next slot in the input buffer.
Otherwise, if no parameter is provided, a window is displayed with the input buffer
values. You can enter input values while the window is open. An arrow points to the next
value to be used as input to the SCI. The data from the SCI input buffer is written to the
SCI data register once the SCI module has been turned on and is properly configured for
receiving data from an external serial device. Once the simulation of the data transmission
is over, the arrow moves to the next value in the SCI IN Buffer.