mc68hc708mp16 Freescale Semiconductor, Inc, mc68hc708mp16 Datasheet - Page 312

• Manufacturer Part Number: mc68hc708mp16
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Serial Communications Interface Module (SCI)
Technical Data
312
BYTE 1
BYTE 1
PE — Receiver Parity Error Bit
READ SCS1
READ SCDR
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)
Figure 14-11. Flag Clearing Sequence
OR = 0
Serial Communications Interface Module (SCI)
1 = Parity error detected
0 = No parity error detected
READ SCDR
READ SCS1
BYTE 2
BYTE 2
DELAYED FLAG CLEARING SEQUENCE
SCRF = 1
NORMAL FLAG CLEARING SEQUENCE
(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
MC68HC708MP16
Freescale Semiconductor
BYTE 4
BYTE 4
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Rev. 3.1