Rev. 1.0, 09/01, page 657 of 904
Bit
Bit Name
Initial Value
R/W
Description
2
1
0
ACS2
ACS1
ACS0
0
0
0
R/W
R/W
R/W
Asynchronous clock source selection (valid when
CKS1 = 1 in asynchronous mode)
Selects the clock source for the average transfer
rate.
The basic clock can be automatically set by
selecting the average transfer rate in spite of the
value of ABCS.
000: External clock input
001: Selects 115.152 kbps which is the average
transfer rate dedicated for
φ
= 10.667 MHz.
(Operates on a basic clock with a frequency
of 16 times the transfer rate.)
010: Selects 460.606 kbps which is the average
transfer rate dedicated for
φ
= 10.667 MHz.
(Operates on a basic clock with a frequency
of 8 times the transfer rate.)
011: Selects 720 kbps which is the average
transfer rate dedicated for
φ
= 32 MHz.
(Operates on a basic clock with a frequency
of 16 times the transfer rate.)
100: Reserved
101: Selects 115.196 kbps which is the average
transfer rate dedicated for
φ
= 16 MHz
(Operates on a basic clock with a frequency
of 16 times the transfer rate.)
110: Selects 460.784 kbps which is the average
transfer rate dedicated for
φ
= 16 MHz
(Operates on a basic clock with a frequency
of 16 times the transfer rate.)
111: Selects 720 kbps which is the average
transfer rate dedicated for
φ
= 16 MHz
(Operates on a basic clock with a frequency
of 8 times the transfer rate.)
Note that the average transfer rate does not
correspond to the frequency other than 10.667,
16, or 32 MHz.
Содержание H8S/2376 F-ZTAT
Страница 24: ...Rev 1 0 09 01 page xxiv of xliv ...
Страница 38: ...Rev 1 0 09 01 page xxxviii of xliv ...
Страница 44: ...Rev 1 0 09 01 page xliv of xliv ...
Страница 60: ...Rev 1 0 09 01 page 16 of 904 ...
Страница 96: ...Rev 1 0 09 01 page 52 of 904 ...
Страница 116: ...Rev 1 0 09 01 page 72 of 904 ...
Страница 148: ...Rev 1 0 09 01 page 104 of 904 ...
Страница 284: ...Rev 1 0 09 01 page 240 of 904 ...
Страница 422: ...Rev 1 0 09 01 page 378 of 904 ...
Страница 634: ...Rev 1 0 09 01 page 590 of 904 ...
Страница 656: ...Rev 1 0 09 01 page 612 of 904 ...
Страница 668: ...Rev 1 0 09 01 page 624 of 904 ...
Страница 780: ...Rev 1 0 09 01 page 736 of 904 ...
Страница 796: ...Rev 1 0 09 01 page 752 of 904 ...
Страница 806: ...Rev 1 0 09 01 page 762 of 903 ...
Страница 808: ...Rev 1 0 09 01 page 764 of 904 ...
Страница 921: ...Rev 1 0 09 01 page 877 of 904 ø tBRQOD tBRQOD Figure 24 24 External Bus Request Output Timing ...
Страница 938: ...Rev 1 0 09 01 page 894 of 904 ...