Hitachi H8/3152 Hardware Manual page 9

Table 1.1 Features (cont)
Item
On-chip memory
I/O ports
Random number
generator (RNG)
2
Specification
EEPROM
H8/3152: 8 kbytes + 256 bytes (32 bytes x (256 + 8) pages)
H8/3153: 16 kbytes + 512 bytes (64 bytes x (256 + 8) pages)
H8/3155: 1 kbyte + 128 bytes (16 bytes x (64 + 8) pages)
H8/3156: 2 kbyte + 128 bytes (16 bytes x (128 + 8) pages)
H8/3158: 16 kbytes + 512 bytes (64 bytes x (256 + 8) pages)
•
Written by a special block data transfer instruction
•
Page write (1 byte to page capacity) and erase
•
Protected against accidental writing and erasing
•
On-chip voltage pumping circuit
•
Built-in oscillator and timer
•
Write/erase time (max.): 10 ms (rewrite), 5 ms (erase, overwrite)
•
Rewrite endurance: 10
•
Data retention time: 10 years
ROM
H8/3152: 24 kbytes
H8/3153: 32 kbytes
H8/3155: 16 kbytes
H8/3156: 16 kbytes
H8/3158: 46 kbytes
RAM
H8/3152: 512 bytes
H8/3153: 1 kbyte
H8/3155: 512 bytes
H8/3156: 512 bytes
H8/3158: 1 kbyte
Two general-purpose input/output ports (Also used for interrupts)
Note: When writing to the DDR7 and DDR6 bits, use the MOV instruction
instead of the bit manipulation instruction.
Generates 16-bit random numbers.
5
times