Nvm Config 3 Register (Offset: 0X701C); Software Arbitration Register (Offset: 0X7020) - Broadcom NetXtreme/NetLink BCM5718 Series Programmer's Manual

BCM5718 Programmer's Guide

NVM Config 3 Register (offset: 0x701C)

This register is reset by POR only.
Name
Read Command
Reserved–Buffer Write
Command
Write Command
Reserved–Buffer Read
Command

Software Arbitration Register (offset: 0x7020)

With this Flash Controller, software entity must win arbitration before accessing the NVRAM.
Name
Reserved
REQ5
ARB_WON5
REQ_CLR5
REQ_SET5
REQ4
ARB_WON4
Broadcom
®
January 29, 2016 • 5718-PG108-R
Bits Access Default Value
31:24 RW 0x0B if AT26DFXX
0xE8 if AT45DBXX
non D
0x03 if AT45DBXX
D
0x03 if
STM25PEXX
0x03 if
STM45PEXX
23:16 RO 0
15:8 RW 0x82 if AT26DFXX
0x82 if AT45DBXX
0x0A if
STM25PEXX
0x0A if
STM45PEXX
7:0 RO 0
Default
Bits Access Value
31:24 RO 0
23 RO 0
22 RO 0
21 WO X
20 WO X
19 RO 0
18 RO 0
Non-Volatile Memory (NVM) Interface Registers
Description
This is the Flash/SEEPROM read command.
Following this command, any number of
bytes may be read up to the end of the flash
memory.
For SEEPROM (flash mode = 0), this is
SEEPROM read command. Bits(26:25) are
address bits A1 and A0 of SEEPROM.
User should modify those two bits based on
the value of A1 and A0 assigned to this
SEEPROM device.
–
Command to write a series of bytes into a
selected page in the Flash device. Note: this
write command wraps around to the
beginning of the page after the internal
address counter in the Flash device reaches
the end of the page.
For SEEPROM (flash_mode = 0), this is
SEEPROM write command. Bits[10:9] are
address bits A1 and A0 of SEEPROM.
User should modify those two bits based on
the value of A1 and A0 assigned to this
SEEPROM device.
–
Description
–
Software request bit 5.
1 in this bit indicates that the request5 is active.
Arbitration won bit 5 (see bit 8, ARB_WON0).
Write 1 to clear REQ5 bit.
Write 1 to set REQ5 bit.
Software request bit 4.
1 in this bit indicates that the request4 is active.
Arbitration won bit 4(see bit 8, ARB_WON0)
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