EZ80F91MCU Datasheet, PDF (68/396 Pages) Zilog, Inc. – eZ80Acclaim-TM Flash Microcontrollers

eZ80F91 MCU
Product Specification
49
Table 3. Register Map (Continued)
Address
(hex) Mnemonic
Name
Reset
CPU Page
(hex) Access #
Flash Memory Control, continued
00F6 FLASH_DATA
Flash Data Register
XX
R/W
111
00F7 FLASH_ADDR_U Flash Address Upper Byte Register
00
R/W
112
00F8
00F9
00FA
FLASH_CTL
FLASH_FDIV
FLASH_PROT
Flash Control Register
88
Flash Frequency Divider Register
01
Flash Write/Erase Protection Register
FF
R/W
113
R/W⁵ 114
R/W⁵ 115
00FB FLASH_IRQ
Flash Interrupt Control Register
00
R/W
116
00FC FLASH_PAGE
Flash Page Select Register
00
R/W
118
00FD FLASH_ROW
Flash Row Select Register
00
R/W
119
00FE FLASH_COL
Flash Column Select Register
00
R/W 120
00FF FLASH_PGCTL
Flash Program Control Register
00
R/W 120
Notes:
1. After an external pin reset, the Watch-Dog Timer Control register is reset to 00h. After a Watch-Dog Timer time-
out reset, the Watch-Dog Timer Control register is reset to 20h.
2. When the CPU reads this register, the current sampled value of the port is read.
3. Read Only if RTC is locked; Read/Write if RTC is unlocked.
4. After an external pin reset or a Watch-Dog Timer reset, the RTC Control register is reset to x0xxxx00b. After a
an RTC Alarm sleep-mode recovery reset, the RTC Control register is reset to x0xxxx10b.
5. Read Only if Flash Memory is locked. Read/Write if Flash Memory is unlocked.
PS019209-0504
PRELIMINARY
Register Map