Zilog Z16C35 - Manual (Page 135)

ISCC
User Manual
UM011002-0808
129
Figure 5–53. Read Register 13
5.5.9 Read Register 15
RR15 reflects the value stored in WR15, the External/Status IE bits. The two unused bits
are always returned as “0s”. Figure 5-25 shows the bits positions for RR15.
Figure 5–54. Read Register 15
Read Register 13
D6 D7 D5 D4 D3 D2 D1 D0
TC8
TC9
TC10
TC11
TC12
TC13
TC14
TC15
Upper
Byte of
Time
Constant
Read Register 15
D6 D7 D5 D4 D3 D2 D1 D0
0
Zero Count IE
0
DCD IE
Sync/Hunt IE
CTS IE
Tx Underrun/EOM IE
Break/Abort IE
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