Flash Memory Status Register 3 (Fsr3) - Fujitsu 8FX Hardware Manual

MB95630H Series
26.8.4

Flash Memory Status Register 3 (FSR3)

This section describes the flash memory status register 3 (FSR3).
■ Register Configuration
bit 7
Field —
Attribute —
Initial value 0
■ Register Functions
[bit7:5] Undefined bits
Their read values are always "0". Writing values to these bits has no effect on operation.
[bit4] CERS: Flash memory chip erase status bit
This bit indicates the chip erase status of the Flash memory.
bit4
Reading "0"
Reading "1"
[bit3] ESPS: Flash memory sector erase suspend status bit
This bit indicates the sector erase suspend of the Flash memory.
bit3
Reading "0"
Reading "1"
[bit2] SERS: Flash memory sector erase status bit
This bit indicates the sector erase status of the Flash memory.
bit2
Reading "0"
Reading "1"
[bit1] PGMS: Flash memory program status bit
This bit indicates the program status of the Flash memory.
The PGMS bit will never be asserted under the condition that the machine clock (MCLK) cycle is longer than
1 µs. Use this bit with the machine clock (MCLK) cycle shorter than 1 s.
bit1
Reading "0"
Reading "1"
[bit0] HANG: Flash memory hang up status bit
This bit indicates whether the Flash memory has malfunctioned or not.
bit0
Reading "0"
Reading "1"
MN702-00009-2v0-E
6 5
— —
— —
0 0
Indicates that Flash memory chip erase has been completed.
Indicates that Flash memory chip erase is in progress.
Indicates that Flash memory sector erase suspend has been completed.
Indicates that Flash memory sector erase suspend is in progress.
Indicates that Flash memory sector erase has been completed.
Indicates that Flash memory sector erase is in progress.
Indicates that Flash memory program has been completed.
Indicates that Flash memory program is in progress.
Indicates that no malfunction of command input has occurred so far.
Indicates that a malfunction of command input has occurred.
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER 26 DUAL OPERATION FLASH MEMORY
4 3
CERS ESPS
R R
X X
Details
Details
Details
Details
Details
26.8 Registers
2 1
SERS PGMS
R R
X X
0
HANG
R
X
571