Pld Write Protect And I C Debug Register; Table 5-14 Pld Write Protect And I C Debug Register - SMART Embedded Computing MVME2500 Installation & Use Manual

Field Description
BOOT_BLOCK_A
BOOT_SPI
5.5.11 PLD Write Protect and I
The MVME2500 PLD provides an 8-bit register which is used to indicate the status of I
and SPI write-protect manual switches and is used to control the SPI write-enable.The I
debug ports are also provided in this register which is used in controlling the bus' status.
Table 5-14 PLD Write Protect and I
REG
Bit
Field
OPER
RESET
Field Description
MASTER_WP_DISABLED
FLASH_WP_N
I2C_DEBUG_EN
SERIAL_FLASH_WP
MVME2500 Installation and Use (6806800L01S)
Boot Block Manual Selector Switch
1 - SPI0
0 - SPI1
Actual Boot Bank
1 - SP1
0 - SPI0
2
PLD Write Protect I C Debug- 0xFFDF0054
7 6 5
MASTE
R_WP_ FLASH_
RSVD
DISABL WP_N
ED
R R R
0 1 0
I2C devices manual switch write-protect status
1 - Write-protect enabled
0 - Write-protect disabled
SPI devices manual switch write-protect status
1 - Write-protect disabled
0 - Write-protect enabled
I2C debug ports (I2C_1_D and I2C_1_C) enable
1 - Drive Enabled
0 - Drive Disabled
SPI devices write-protect register
1 - Write-protect enabled
0 - Write-protect disabled
Memory Maps and Registers
2
C Debug Register
2
C Debug Register
4 3
SERIAL_
I2C_DE
FLASH_
BUG_EN
WP
R/W R/W
0 1
2 1 0
RSVD I2C_1_D I2C_1_C
R R/W R/W
0 1 1
2
C
2
C
97