Table 6-2. External Memory Section Mapping; Table 6-3. Primary Ahb Peripheral Register Mapping - Sharp Blue Treak LH75400 User Manual

LH75400/01/10/11 (Preliminary) User's Guide
The second partitioning of memory space is the dividing of the segments into sections. The
external memory segment is divided into eight 64MB sections, of which the first four are
used, each having a chip select associated with it. Access to any of the last four sections
does not result in an external bus access and does not cause a memory abort. The periph-
eral register segment is divided into 4KB peripheral sections, 21 of which are assigned to
the peripherals. See Table 6-2 through Table 6-4. In Table 6-2, 'XX' represents a valid
REMAP value ('00', '01', or '10').

Table 6-2. External Memory Section Mapping

START ADDRESS
REMAP = XX
0x40000000
0x44000000
0x48000000
0x4C000000
0x50000000
0x54000000
0x58000000
0x5C000000

Table 6-3. Primary AHB Peripheral Register Mapping

ADDRESS RANGE
0xFFFC0000 - 0xFFFEFFFF APB Bridge
0xFFFF0000 - 0xFFFF0FFF Reserved
0xFFFF1000 - 0xFFFF1FFF Ext. Static Mem Controller
0xFFFF2000 - 0xFFFF3FFF Reserved
0xFFFF4000 - 0xFFFF4FFF
0xFFFF5000 - 0xFFFFEFFF Reserved
0xFFFFF000 - 0XFFFFFFFF Interrupt Controller
DEVICE
REMAP = 00
0x00000000 Chip Select 0
0x04000000 Chip Select 1
0x08000000 Chip Select 2
0x0C000000 Chip Select 3
0x10000000 Invalid Access
0x14000000 Invalid Access
0x18000000 Invalid Access
0x1C000000 Invalid Access
DEVICE
Color LCD Controller (LH75401 and
LH75400 and LH75410)
LCD Controller (
7/2/03
Memory Interface Architecture
LH75411
)
6-3