E981.03 Datasheet, PDF (34/51 Pages) ELMOS Semiconductor AG – Autonomous MAC and individual physical address

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PRODUCTION DATA - JAN 15, 2015
E981.03
Table 11. Reset source
RES_SOURCE value
0x00
0x01
0x02
0x03
0x04
0x05
0x07
reset source
start-up reset (this is the only reset source that corresponds to register hard reset values)
the previous reset was initiated by an externally driven active RESET
the previous reset was initiated by a Reset.request service
the previous reset was initiated by a write access to the RESET_CTRL register
E981.03 intern watchdog
the previous reset was initiated by a low VCC
E981.03 internal error
Table 12. Busy timeout register
Register Name
BUSY_REG
Address
0x202
Description
Busy Mode register
Table 13. BUSY_REG
back to Table 8 Register Table
BUSY_REG
MSB
LSB
content
T7
T6
T5
T4
T3
T2
T1
T0
hard reset value 0
0
0
1
1
0
1
0
soft reset value 0
0
0
1
1
0
1
0
access
R/W ¹⁾
R/W ¹⁾
R/W ¹⁾
R/W ¹⁾
R/W ¹⁾
R/W ¹⁾
R/W ¹⁾
R/W ¹⁾
1) Access via UART service and SPI possible. In case of hard or soft reset the register is reset to the hard reset value or soft reset
value respectively.
Table 14. Timeout examples
BUSY_REG value
255
175
26 (default)
0
timeout value
1.02 s
0.7 s
0.1 s
0s
Timebase is 4 ms per digit.
Table 15. Device mode registers
Register Name
DEVMODE
CMODE
PROD_ID
PINS
Address
0x300
0x200
0x371
0x306
Description
active device mode
communication mode
IC product ID (read only)
mode control and baud rate select pin values
Register CMODE is used for IC control and is intended to be written by host controller. Register DEVMODE reflects
the state of the IC.
Table 16. Active device mode
back to Table 8 Register Table
DEVMODE
content
hard reset value
soft reset value
access
bit description
MSB
LSB
M7
M6
M5
M4
M3
M2
M1
M0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
R ¹⁾
This register holds the value of the currently active mode. This mode may differ from the
communication mode selected by the CMODE register for several reasons. Especially dur-
ing mode changes the DEVMODE register reflects the currently active mode.
1) Access via UART service and SPI possible. In case of hard or soft reset the register is reset to the hard reset value or soft reset
value respectively.
Elmos Semiconductor AG reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.
Elmos Semiconductor AG
Data Sheet
QM-No.: 25DS0046E.03
34/51