Section 8 RAM-FIFO Unit (RFU)
Rev. 3.00 Jan 25, 2006 page 186 of 872
REJ09B0286-0300
Table 8.4
Requests from Peripheral Modules and RFU Bus Cycle
Requests from
Peripheral
Modules
Transfer Condition and FIFO Pointer
Status
RFU Bus Cycle
Contents
Pointer
Manipulation
Other than
the following
RAM read, peripheral
module write cycle
Adds RAR
RAR = WAR after
RAR addition
RAM read, peripheral
module write cycle
Notification of FIFO
empty state
Adds RAR
RAM
→
peripheral
modules
TMP is not used
RAR = WAR
Notification of FIFO
overread state
No pointer
manipulations
Other than
the following
RAM read, peripheral
module write cycle
Adds RAR
RAR = WAR after
RAR addition
RAM read, peripheral
module write cycle
Notification of FIFO
empty state
Adds RAR
RAM
→
peripheral
modules
TMP is used as
a read temporary
pointer
RAR = WAR
Notification of FIFO
overread state
No pointer
manipulations
Other than
the following
RAM read, peripheral
module write cycle
Adds WAR
Peripheral modules
→
RAM
TMP is not used
WAR = RAR after
WAR addition
Peripheral module read,
RAM write cycle
Notification of FIFO
full state
Adds WAR
WAR = RAR
Notification of FIFO
overwrite state
No pointer
manipulations
Other than
the following
RAM read, peripheral
module write cycle
Adds WAR
Data transfer
Peripheral modules
→
RAM
TMP is used as
a write temporary
pointer
WAR = RAR after
WAR addition
Peripheral module read,
RAM write cycle
Notification of FIFO full
state
Adds WAR
WAR = RAR
Notification of FIFO
overwrite state
No pointer
manipulations
Summary of Contents for H8S/2158
Page 10: ...Rev 3 00 Jan 25 2006 page viii of lii...
Page 36: ...Rev 3 00 Jan 25 2006 page xxxiv of lii B Product Lineup 863 C Package Dimensions 864 Index 865...
Page 47: ...Rev 3 00 Jan 25 2006 page xlv of lii Appendix Figure C 1 Package Dimensions TBP 112A 864...
Page 54: ...Rev 3 00 Jan 25 2006 page lii of lii...
Page 70: ...Section 1 Overview Rev 3 00 Jan 25 2006 page 16 of 872 REJ09B0286 0300...
Page 118: ...Section 3 MCU Operating Modes Rev 3 00 Jan 25 2006 page 64 of 872 REJ09B0286 0300...
Page 126: ...Section 4 Exception Handling Rev 3 00 Jan 25 2006 page 72 of 872 REJ09B0286 0300...
Page 198: ...Section 6 Bus Controller Rev 3 00 Jan 25 2006 page 144 of 872 REJ09B0286 0300...
Page 326: ...Section 10 8 Bit PWM Timer PWM Rev 3 00 Jan 25 2006 page 272 of 872 REJ09B0286 0300...
Page 440: ...Section 15 Watchdog Timer WDT Rev 3 00 Jan 25 2006 page 386 of 872 REJ09B0286 0300...
Page 606: ...Section 17 I 2 C Bus Interface IIC Rev 3 00 Jan 25 2006 page 552 of 872 REJ09B0286 0300...
Page 742: ...Section 19 Multimedia Card Interface MCIF Rev 3 00 Jan 25 2006 page 688 of 872 REJ09B0286 0300...
Page 750: ...Section 21 D A Converter Rev 3 00 Jan 25 2006 page 696 of 872 REJ09B0286 0300...
Page 768: ...Section 22 A D Converter Rev 3 00 Jan 25 2006 page 714 of 872 REJ09B0286 0300...
Page 770: ...Section 23 RAM Rev 3 00 Jan 25 2006 page 716 of 872 REJ09B0286 0300...
Page 824: ...Section 26 Clock Pulse Generator Rev 3 00 Jan 25 2006 page 770 of 872 REJ09B0286 0300...
Page 844: ...Section 27 Power Down Modes Rev 3 00 Jan 25 2006 page 790 of 872 REJ09B0286 0300...
Page 878: ...Section 28 List of Registers Rev 3 00 Jan 25 2006 page 824 of 872 REJ09B0286 0300...
Page 926: ...Index Rev 3 00 Jan 25 2006 page 872 of 872 REJ09B0286 0300...