DG-ACC-JBST Digi International, DG-ACC-JBST Datasheet - Page 25

• Manufacturer Part Number: DG-ACC-JBST
• Description: JTAG-BOOSTER FOR NETSILICON 3.3V
• Manufacturer: Digi International
• Series: Digi/FS Forthr
• Type: FLASHr

Specifications of DG-ACC-JBST

• Contents: Programmer and Associated Interface Software
• For Use With/related Products: NetSilicon NS9360, NS9750, NS9775
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: FS-9051; FS-9051

The memory chip also provides these features:
The DS2431 is a 1024-bit 1-wire EEPROM chip organized as four memory pages of
256-bit each. Data is written to an 8-byte scratch pad, verified and then copied to
the EEPROM memory.
The ConnectCore XP 270 module uses GPIO87 for “bit-toggling” and implementing the
1-wire protocol to communicate with this device. For more information, see the
DS2431 datasheet.
This table shows the 1-wire EEPROM memory map:
0x000–0x001F
0x0020–0x003F
0x0040–0x005F
0x0060–0x007F
0x0080
0x0081
Address range
1024-bit EEPROM memory organized as four memory pages of 256 bits each.
Memory pages that can be individually write-protected or put in EPROM-
emulation mode
8-byte scratch pad
Communication over the single-conductor 1-wire bus. Communication
follows standard Dallas Semiconductor 1-wire protocol.
Communication with Host with a single digital signal at 15.4kbps or 111kbps
using the 1-wire protocol
Its own unalterable and unique 64-bit ROM registration number that is
factory lasered into the chip
R/(W)
R/(W)
R/(W)
R/(W)
R/(W)
R/(W)
Type
Data Memory Page 0
Used for MAC ADDRESS
Data Memory Page 1
Data Memory Page 2
Data Memory Page 3
Page 0
Page 1
Protection Control Byte
Protection Control Byte
Description
w w w . d i g i . c o m
0x55: Write Protect
0xAA: EPROM mode
0x55 or 0xAA: Write protect 0x80
0x55: Write Protect
0xAA: EPROM mode
0x55 or 0xAA: Write protect 0x81
Protection codes
A b o u t t h e M o d u l e
1 3