Table 7-5. 8-Bit External Bus Write; Table 7-6. 16-Bit External Bus Write - Sharp Blue Treak LH75400 User Manual

Static Memory Controller
INTERNAL
TRANSFER
WIDTH
Word
(4 transfers)
Halfword
(2 transfers)
Halfword
(2 transfers)
Byte
Byte
Byte
Byte
INTERNAL
TRANSFER
WIDTH
Word
(2 transfers)
Halfword
Halfword
Byte
Byte
Byte
Byte
7-10

Table 7-5. 8-bit External Bus Write

ACCESS: WRITE, 8-BIT EXTERNAL BUS
HSIZE[1:0] HADDR[1:0] A[1:0] nBLE[1:0]
10
10
10
10
01
01
00
00
00
00

Table 7-6. 16-bit External Bus Write

ACCESS: WRITE, 16-BIT EXTERNAL BUS
HSIZE[1:0] HADDR[1:0] A[1:0] nBLE[1:0]
10
10
01
01
00
00
00
00
LH75400/01/10/11 (Preliminary) User's Guide
xx 11 10
xx 10 10
xx 01 10
xx 00 10
11 10
1x
10 10
01 10
0x
00 10
11 11 10
10 10 10
01 01 10
00 00 10
xx 1x 00
xx 0x 00
1x 1x 00
0x 0x 00
11 1x 01
10 1x 10
01 0x 01
00 0x 10
6/17/03
SYSTEM DATA MAPPING
ONTO EXTERNAL DATA BUS
15:8 7:0
— 31:24
— 23:16
— 15:8
— 7:0
— 31:24
— 23:16
— 15:8
— 7:0
— 31:24
— 23:16
— 15:8
— 7:0
SYSTEM DATA MAPPING
ONTO EXTERNAL DATA BUS
15:8 7:0
31:24 23:16
15:8 7:0
31:24 23:16
15:8 7:0
31:24 —
— 23:16
15:8 —
— 7:0