Hitachi H8S/2378, H8S/2378R Series Hardware Manual page 372

Bit Bit Name
12 SARA4
11 SARA3
10 SARA2
9 SARA1
8 SARA0
Rev. 1.0, 09/01, page 328 of 904
Initial Value R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
Description
Source Address Repeat Area
These bits specify the source address (EDSAR)
repeat area. The repeat area function updates
the specified lower address bits, leaving the
remaining upper address bits always the same.
A repeat area size of 2 bytes to 8 Mbytes can
be specified. The setting interval is a power-of-
two number of bytes. When repeat area
overflow results from incrementing or
decrementing an address, the lower address is
the start address of the repeat area in the case
of address incrementing, or the last address of
the repeat area in the case of address
decrementing. If the SARIE bit is set to 1, an
interrupt can be requested when repeat area
overflow occurs.
00000: Not designated as repeat area
00001: Lower 1 bit (2-byte area) designated as
repeat area
00010: Lower 2 bits (4-byte area) designated as
repeat area
00011: Lower 3 bits (8-byte area) designated as
repeat area
00100: Lower 4 bits (16-byte area) designated
as repeat area
:
10011: Lower 19 bits (512-kbyte area)
designated as repeat area
10100: Lower 20 bits (1-Mbyte area) designated
as repeat area
10101: Lower 21 bits (2-Mbyte area) designated
as repeat area
10110: Lower 22 bits (4-Mbyte area) designated
as repeat area
10111: Lower 23 bits (8-Mbyte area) designated
as repeat area
11XXX: Setting prohibited
: