SH7713 datasheet(585/904 Pages) RENESAS

585 / 904 page

Section 16 Serial Communication Interface with FIFO (SCIF)

Rev.1.50 Aug. 30, 2006 Page 545 of 860

REJ09B0288-0150

16.3.7

Serial Status Register (SCFSR)

SCFSR is a 16-bit register. The lower 8 bits specify the status flags that indicate the SCIF

operating status. The upper 8 bits indicate the receive error number of data in the receive-FIFO

SCFSR can be read or written to by the CPU at all times. However, 1 cannot be written to the ER,

TEND, TDFE, BRK, RDF, and DR flags. Also note that in order to clear these flags to 0, they

must be read as 1 beforehand.

The FER and PER flags are read-only flags and cannot be modified.

SCFSR is initialized to H'0060 by a power-on reset or manual reset. It is not initialized in standby

mode or in the module standby state, and retains its contents.

Bit

Bit Name

Initial

Value

R/W

Description

PER3

PER2

PER1

PER0

Parity Error Number 3 to 0

Indicate the number of data bytes, in which parity

errors are generated, in receive data stored in

SCFRDR.

After setting the ER bit in SCFSR, the values of bits

15 to 12 indicate the number of parity error

generated data. When all 16 bytes of receive data

in SCFRDR has parity errors, the PER3 to PER0

bits indicate 0.

FER3

FER2

FER1

FER0

Framing Error Number 3 to 0

Indicate the number of data bytes, in which framing

errors are generated, in receive data stored in

SCFRDR.

After setting the ER bit in SCFSR, the values of bits

11 to 8 indicate the number of framing error

generated data.

When all 16 bytes of receive data in SCFRDR has

framing errors, the FER3 to FER0 bits indicate 0.

SH7713 Datasheet(PDF) 585 Page - Renesas Technology Corp

SH7713 Datasheet(HTML) 585 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL