mc68hc908gp20 Freescale Semiconductor, Inc, mc68hc908gp20 Datasheet - Page 281

• Manufacturer Part Number: mc68hc908gp20
• Description: M68hc08 Family Of 8-bit Microcontroller Units Mcus
• Manufacturer: Freescale Semiconductor, Inc

MC68HC908GP20
Freescale Semiconductor
BYTE 1
BYTE 1
—
Rev 2.1
READ SCDR
READ SCS1
PE — Receiver Parity Error Bit
SCRF = 1
This clearable, read-only bit is set when the SCI detects a parity error
in incoming data. PE generates a PE CPU interrupt request if the PEIE
bit in SCC3 is also set. Clear the PE bit by reading SCS1 with PE set
and then reading the SCDR. Reset clears the PE bit.
BYTE 1
OR = 0
Figure 18-13. Flag Clearing Sequence
1 = Parity error detected
0 = No parity error detected
READ SCDR
READ SCS1
DELAYED FLAG CLEARING SEQUENCE
NORMAL FLAG CLEARING SEQUENCE
BYTE 2
BYTE 2
SCRF = 1
BYTE 1
OR = 0
READ SCDR
READ SCS1
SCRF = 1
BYTE 2
OR = 0
BYTE 3
BYTE 3
READ SCDR
READ SCDR
READ SCS1
READ SCS1
SCRF = 1
SCRF = 1
BYTE 3
BYTE 3
OR = 1
OR = 0
BYTE 4
BYTE 4
Advance Information
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