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Register Descriptions
MVME7100ET Single Board Computer Programmer’s Reference (6806800K88B)
31
3.1.4
NOR Flash Control/Status Register
The MVME7100ET Flash Control/Status Register provides software controlled bank write
protect and map select functions as well as boot block select, bank write protect, and activity
status for the NOR flash.
USR2_LED
User LED 2. This bit is used to control the planar USR2 LED. A set condition illuminates the
LED and a cleared condition extinguishes the LED.
USR3_LED
User LED 3. This bit is used to control the planar USR3 LED. A set condition illuminates the
LED and a cleared condition extinguishes the LED.
RSVD
Reserved for future implementation
Table 3-5 NOR Flash Control/Status Register
REG
NOR Flash Control/Status Register - 0xF200 0003
BIT
7
6
5
4
3
2
1
0
Field
RSVD
RSVD
RSVD
MAP_SEL F_WP_S
W
F_WP_H
W
FBT_BLK
_SEL
FLASH_R
DY
OPER
R
R
R
R/W
R/W
R
R
R
RESET
0
0
0
0
1
X
X
1
FLASH_RDY
Flash Ready. This bit provides the current state of the NOR flash devices Ready/Busy#
pins. These open drain output pins from each flash device are wire OR'd to form Flash
Ready. Refer to the appropriate flash device data sheet for a description on the
function of the Ready/Busy# pin.
FBT_BLK_SEL
Flash Boot Block Select. This bit reflects the current state of the Boot Block B Select
switch. A cleared condition indicates that boot block A is selected and mapped to the
highest address (see Figure 4). A set condition indicates that boot block B is selected
and mapped to the highest address (see
F_WP_HW
Hardware Flash Bank Write Protect switch status. This bit reflects the current state of
the FLASH BANK WP switch. A set condition indicates that the NOR Flash bank is write
protected. A cleared condition indicates that the flash bank is not write protected.
Summary of Contents for MVME7100ET
Page 1: ...MVME7100ET Single Board Computer Programmer s Reference P N 6806800K88B June 2014 ...
Page 10: ...MVME7100ET Single Board Computer Programmer s Reference 6806800K88B 10 List of Figures ...
Page 24: ...Memory Maps MVME7100ET Single Board Computer Programmer s Reference 6806800K88B 24 ...
Page 50: ...Register Descriptions MVME7100ET Single Board Computer Programmer s Reference 6806800K88B 50 ...
Page 96: ...Related Documentation MVME7100ET Single Board Computer Programmer s Reference 6806800K88B 96 ...
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