HD6432621 Hitachi, HD6432621 Datasheet - Page 972

• Manufacturer Part Number: HD6432621
• Description: (HD64F262x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

RAMER—RAM Emulation Register*
Note:
P1DR—Port 1 Data Register
928
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
*1 This register is present only in the F-ZTAT version; it is not provided in the mask ROM
version.
:
:
:
:
:
:
P17DR
R/W
Flash memory area divisions
RAM select
—
R
7
0
H'FFD000–H'FFDFFF RAM area 4 kbytes
H'000000–H'000FFF
H'001000–H'001FFF
H'002000–H'002FFF
H'003000–H'003FFF
H'004000–H'004FFF
H'005000–H'005FFF
H'006000–H'006FFF
H'007000–H'007FFF
7
0
0 Emulation not selected
1
Program/erase-protection of all flash memory blocks is disabled
Emulation selected
Program/erase-protection of all flash memory blocks is enabled
Addresses
P16DR
R/W
—
R
6
0
6
0
Stores output data for port 1 pins (P17 to P10)
P15DR
R/W
R/W
—
5
0
1
5
0
EB0 (4 kbytes)
EB1 (4 kbytes)
EB2 (4 kbytes)
EB3 (4 kbytes)
EB4 (4 kbytes)
EB5 (4 kbytes)
EB6 (4 kbytes)
EB7 (4 kbytes)
Block Name
P14DR
R/W
R/W
—
4
0
4
0
H'FEDB
H'FF00
RAMS
P13DR
R/W
R/W
3
0
3
0
RAMS RAM2 RAM1 RAM0
RAM2
P12DR
0
1
1
1
1
1
1
1
1
Flash memory area select
R/W
R/W
2
0
2
0
*
0
0
0
0
1
1
1
1
RAM1
P11DR
R/W
R/W
1
0
1
0
*
0
0
1
1
0
0
1
1
*: Don't care
RAM0
P10DR
R/W
R/W
0
0
0
0
Port 1
ROM
*
0
1
0
1
0
1
0
1