tda9950 NXP Semiconductors, tda9950 Datasheet - Page 7

• Manufacturer Part Number: tda9950
• Description: Tda9950 Cec/i?c-bus Translator
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TDA9950_1
Product data sheet
Table 8.
Table 9.
Table 10.
Table 11.
Bit
7 to 0
Bit
7 to 4
3 to 0
Bit
7
6
5 to 0
Bit
7
6 to 0
Symbol
CER[7:0]
Symbol
CVR_MAJ[3:0]
CVR_MIN[3:0]
Symbol
RESET
ON_OFF
-
Symbol
reserved
ACKH[6:0]
CER - TDA9950 Error Register (address 01h) bit description (Read only)
CVR - TDA9950 Version Register (address 02h) bit description (Read only)
CCR - TDA9950 Control Register (address 03h) bit description (Read/Write)
ACKH - CEC Address ACK High register (address 04h) bit description
(Read/Write)
Rev. 01 — 16 November 2007
Description
TDA9950 Error Register: This register provides details of the
last error that occurred. Reading this register resets the ERR
bit in the TDA9950 Status Register.
00h = no error has occurred since reset.
01h = watchdog reset has occurred.
02h = long CEC message with no End Of Message (EOM)
detected.
03h = CEC overrun - no buffer available to receive.
Description
TDA9950 major version register: Major version
TDA9950 minor version register: Minor version
Description
RESET: Resets the TDA9950. Any transmission in progress
will be completed first - the reset occurs once the TDA9950
returns to the idle state. All default values will be restored.
0 = no specific action.
1 = resets the TDA9950.
ON_OFF:
0 = the TDA9950 is disabled (after completion of any pending
CEC transmission or reception) and will no longer
acknowledge any message on the CEC line or accept any
message for transmission.
1 = the TDA9950 is enabled and will acknowledge messages
according to the logical address bits in the CEC Address ACK
High and CEC Address ACK Low registers.
not used
Description
reserved (must be set to 0)
CEC Address ACK High register
For each bit:
0 = messages to the corresponding logical address will not be
acknowledged.
1 = messages to the corresponding logical address are
acknowledged and forwarded to the host.
CEC/I
TDA9950
© NXP B.V. 2007. All rights reserved.
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C-bus translator
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