Section 8 RAM-FIFO Unit (RFU)
Rev. 3.00 Jan 25, 2006 page 182 of 872
REJ09B0286-0300
Bit
Bit Name
Initial Value
R/W
Description
7
6
5
CHS2
CHS1
CHS0
0
0
0
R/W
R/W
R/W
Pointer Number Select
These bits represent the pointer set number to
be accessed from FSTR, DTCRA, DTCRB,
DTIDR, and DTSTRC.
4
RS
0
R/W
Register Select
Selects whether to access register/pointer or
FIFO status by FSTR.
0: FSTR accesses register/pointer
1: FSTR accesses FIFO status
3
2
POS1
POS0
0
0
R/W
R/W
Register/Pointer Select 1, 0
These bits select the register/pointer to be
accessed by FSTR while the RS bit is 0.
00: The base address register (BAR) is
accessed by FSTR
01: The read address pointer (RAR) is
accessed by FSTR
10: The write address pointer (WAR) is
accessed by FSTR
11: The temporary pointer (TMP) is accessed
by FSTR
1
0
STS1
STS0
0
0
R/W
R/W
FIFO Status Selects 1, 0
These bits select the FIFO status to be
accessed by FSTR while the RS bit is 1.
00: The valid data byte number (DATATN) is
accessed by FSTR
01: The free area byte number (FREEN) is
accessed by FSTR
10: The read start address (NRA) is accessed
by FSTR
11: The write start address (NWA) is accessed
by FSTR
To access NWA, NRA, FREEN, or DATATN
while the RS bit is 0, write 1 to the RS bit twice.
Содержание H8S/2158
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Страница 36: ...Rev 3 00 Jan 25 2006 page xxxiv of lii B Product Lineup 863 C Package Dimensions 864 Index 865...
Страница 47: ...Rev 3 00 Jan 25 2006 page xlv of lii Appendix Figure C 1 Package Dimensions TBP 112A 864...
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Страница 70: ...Section 1 Overview Rev 3 00 Jan 25 2006 page 16 of 872 REJ09B0286 0300...
Страница 118: ...Section 3 MCU Operating Modes Rev 3 00 Jan 25 2006 page 64 of 872 REJ09B0286 0300...
Страница 126: ...Section 4 Exception Handling Rev 3 00 Jan 25 2006 page 72 of 872 REJ09B0286 0300...
Страница 198: ...Section 6 Bus Controller Rev 3 00 Jan 25 2006 page 144 of 872 REJ09B0286 0300...
Страница 326: ...Section 10 8 Bit PWM Timer PWM Rev 3 00 Jan 25 2006 page 272 of 872 REJ09B0286 0300...
Страница 440: ...Section 15 Watchdog Timer WDT Rev 3 00 Jan 25 2006 page 386 of 872 REJ09B0286 0300...
Страница 606: ...Section 17 I 2 C Bus Interface IIC Rev 3 00 Jan 25 2006 page 552 of 872 REJ09B0286 0300...
Страница 742: ...Section 19 Multimedia Card Interface MCIF Rev 3 00 Jan 25 2006 page 688 of 872 REJ09B0286 0300...
Страница 744: ...Section 20 Encryption Operation Circuit DES and GF Rev 3 00 Jan 25 2006 page 690 of 872 REJ09B0286 0300...
Страница 750: ...Section 21 D A Converter Rev 3 00 Jan 25 2006 page 696 of 872 REJ09B0286 0300...
Страница 768: ...Section 22 A D Converter Rev 3 00 Jan 25 2006 page 714 of 872 REJ09B0286 0300...
Страница 770: ...Section 23 RAM Rev 3 00 Jan 25 2006 page 716 of 872 REJ09B0286 0300...
Страница 824: ...Section 26 Clock Pulse Generator Rev 3 00 Jan 25 2006 page 770 of 872 REJ09B0286 0300...
Страница 844: ...Section 27 Power Down Modes Rev 3 00 Jan 25 2006 page 790 of 872 REJ09B0286 0300...
Страница 878: ...Section 28 List of Registers Rev 3 00 Jan 25 2006 page 824 of 872 REJ09B0286 0300...
Страница 926: ...Index Rev 3 00 Jan 25 2006 page 872 of 872 REJ09B0286 0300...