HD6432646 Hitachi, HD6432646 Datasheet - Page 1041

• Manufacturer Part Number: HD6432646
• Description: (HD64F264x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

BCRL—Bus Control Register L
RAMER—RAM Emulation Register
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
RAM Select
0
1
R/W
—
—
R
7
0
7
0
Emulation not selected
Program/erase-protection of all flash memory blocks is disabled
Emulation selected
Program/erase-protection of all flash memory blocks is enabled
Flash Memory Area Selection
H'FFE000–H'FFE3FF
H'000000–H'0003FF
H'000400–H'0007FF
H'000800–H'000BFF
H'000C00–H'000FFF
R/W
—
—
6
0
R
6
0
Addresses
R/W
—
—
—
5
0
5
0
Write Data Buffer Enable
0
1
R/W
R/W
—
—
4
0
4
0
RAM area 1 kB
EB0 (1 kB)
EB1 (1 kB)
EB2 (1 kB)
EB3 (1 kB)
Write data buffer function not used
Write data buffer function used
Block Name
Wait Enable
0
1
H'FED5
H'FEDB
RAMS
R/W
R/W
—
3
1
3
0
Wait input by WAIT pin disabled.
WAIT pin can be used as I/O port.
Wait input by WAIT pin enabled
RAM2
RAMS
R/W
R/W
—
2
0
2
0
0
1
RAM2
WDBE
*
0
1
RAM1
R/W
R/W
1
0
1
0
RAM1
Bus Controller
Flash Memory
*: Don't care
0
1
0
1
*
WAITE
RAM0
R/W
R/W
RAM0
0
0
0
0
*
1007