7UKPI2TQVQEQN/CETQU
5GEVKQP
4GEGKXG&CVC5VQTCIG#TGCDGHQTG'ZGEWVKPI2/%4
9JGPVJG2/%4KPUVTWEVKQPKUGZGEWVGFVJGTGEGRVKQPDWHHGTKUENGCTGF
VQQPEGKOOGFKCVGN[DGHQTGVJGUGPFTGEGKXGUGSWGPEGKUGHCNCF
FGTRTQITCOKUWUGFVJCVTGIWNCTN[TGCFUVJGRTGUGPVXCNWGFCVCCUUJQYPKP
VJGHQNNQYKPIFKCITCOVJGRTGUGPVXCNWGFCVCYQWNFPQTOCNN[DGENGCTGFVQKH
VJGFCVCKUPQVTGVTKGXGFFWGVQCPGTTQTUWEJCUCTGEGRVKHTGEGRVKQP
RTQEGUUKPIHCKNUJQYGXGTVJGFCVCVJCVYCUUVQTGFUVCTVGFCV4KGVJG
PWODGTQHYQTFUURGEKHKGFKP4KUCICKPTGCFHTQOVJGTGEGRVKQPDWHHGTCPF
UVQTGFCICKPDGIKPPKPICV46JKUGPUWTGUVJCVVJGEWTTGPVFCVCYKNNPQVDG
ENGCTGFCPFVJCVVJGRTGXKQWUTGEGKXGFCVCYKNNDGOCKPVCKPGFYJGPTGEGRVKQPU
HCKN/CMGUWTGVQUGVVJGPWODGTQHYQTFUOHQTVJGFCVCVJCVKUVH
VJGFCVCKUUGVVQQTVJGOQUVTGEGPVTGEGKXGFCVCYKNNPQPUVGCF
KVYKNNDGENGCTGFVQ
'ZCORNG
6JG HQNNQYKPI RTQVQEQN ECP DG WUGF VQ TGIWNCTN[ GZGEWVG VJG 2/%4
KPUVTWEVKQPVQTGVTKGXGTGEGKXGFCVCD[RGTHQTOKPIVJGUGPFTGEGKXGQRGTCVKQP
QPEGQPN[
4GEGKXG&CVC5VQTCIG#TGC(WPEVKQP
6JGTGEGKXGFCVCUVQTCIGCTGCKUWUGFCEEQTFKPIVQVJGHQNNQYKPIRTQEGFWTG
9JGPVJG2/%4KPUVTWEVKQPKUGZGEWVGFYQTFUQHVJGTGEGRVKQP
DWHHGTKPVJG5GTKCN%QOOWPKECVKQPU$QCTFQT5GTKCN%QOOWPKECVKQPU7PKV
CTGENGCTGF
$GHQTGGZGEWVKPIVJGUGPFTGEGKXGUGSWGPEGVJGEQPVGPVUQHQPGNGUUVJCP
VJGPWODGTQHYQTFUURGEKHKGFKP4UVCTVKPIHTQOYQTF4CTGWUGFVQ
QXGTYTKVGVJGEQPVGPVUQHVJGTGEGRVKQPDWHHGTGZENWFKPIVJGHKTUVYQTF6JKU
DGEQOGU VJG KPKVKCN XCNWG QH VJG TGEGRVKQP DWHHGT CPF VJG TGUWNVU QH VJG
4'%8EQOOCPFGZGEWVKQPCTGYCHVJGEQPVGPVUQHVJGTGEGRVKQP
DWHHGTGZEGGFUVJGEQPVGPVUQHVJGPWODGTQHYQTFUURGEKHKGFKP4QTVJG
Protocol Macro
Executing Flag
Set
m words
Reception
buffer
Value is stored
when reception
fails.
Always ON Flag
Communications
Port Enabled Flag
Send/receive
sequence
Reception
buffer
Receive area
R + 1 onwards
Not holding the receive area.
Send/receive
sequence
Reception
buffer
Receive area
R + 1 onwards
Holding the receive area.
Clear
Clear
Set
RECV
RECV
Failed
Failed
Stores cleared
values
Stores set values
PMCR(260)
R
R
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