peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 163

• Manufacturer Part Number: peb20560
• Description: Dsp Oriented Pbx Controller Doc
• Manufacturer: Infineon Technologies Corporation

• When finished, the µP resets OBUSY bit for enabling the OAK to send the next
Note: 1) The OBUSY bit is set only 4 DSP cycles after a OAK write operation to OCMD
.
Table 2-27 Register Contents
Register
MCMD
MBUSYR
MDT0
MDT1
MDT2
MDT3
MDT4
MDT5
OCMD
OBUSYR
ODT0
ODT1
ODT2
ODT3
ODT4
ODT5
Note: The busy bit within MBUSYR and OBUSYR is always read or written at the MSB.
Semiconductor Group
command. This operation also deactivates the µP-mailbox interrupt.
2) The OAK can write consecutive writes to the OAK mailbox and it’s up to the
register. Therefore, the first polling-read cycle of OBUSYR should take place
at least 5 DSP clock cycles after the write cycle to OCMD.
user to make sure that the data has been transferred to the µP correctly
(OBUSY has been reset) before writing new data to the OAK mailbox
Description
µP command
µP MB busy
µP data reg 0
µ
µP data reg 1
µP data reg 1
µP data reg 1
µP data reg 1
OAK command 00H
OAK MB busy
OAK data
reg 0
OAK data
reg 1
OAK data
reg 2
OAK data
reg 3
OAK data
reg 4
OAK data
reg 5
P data reg 1
Reset
Value
00H
0H
un-changed 16
un-changed 16
un-changed 16
un-changed 16
un-changed 16
un-changed 16
0H
un-changed 16
un-changed 16
un-changed 16
un-changed 16
un-changed 16
un-changed 16
Bit OAK
8
1
8
1
2-117
Access
R
W
R
R
R
R
R
R
W
R
W
W
W
W
W
W
W
R
µP
Access
R
W
W
W
W
W
W
W
R
R
R
R
R
R
Functional Block Description
µP Add.
for MSB
none
none
343
345
347
349
34B
34D
none
none
353
355
357
359
35B
35D
H
H
H
H
H
H
H
H
H
H
H
H
µP Add
for LSB
340
341
342
344
346
348
34A
34C
350
351
352
354
356
358
35A
35C
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
PEB 20560
OAK
Addr.
C040
C041
C042
C044
C046
C048
C04A
C04C
C050
C051
C052
C054
C056
C058
C05A
C05C
2003-08
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H