71m6534h-igt Maxim Integrated Products, Inc., 71m6534h-igt Datasheet - Page 50

• Manufacturer Part Number: 71m6534h-igt
• Description: Energy Meter Ic
• Manufacturer: Maxim Integrated Products, Inc.

71M6533/71M6534 Data Sheet
Possible applications for the SPI interface are:
50
11xx xxxx ADDR Byte0 ... ByteN
10xx xxxx ADDR Byte0 ... ByteN
SERIAL READ
SERIAL WRITE
(From 653X)
(From 653X)
(From Host)
(From Host)
3) An external DSP can access front-end data generated by the ADC. This mode of operation uses
the 71M6533 or 71M6534 as an analog front-end (AFE).
PSDO
PSDO
PCSZ
PSCK
PCSZ
PSCK
PSDI
PSDI
Command
x
x
C7
C7
0
0
Figure 15: SPI Slave Port: Typical Read and Write operations
C6
C6
8 bit CMD
8 bit CMD
© 2007-2009 TERIDIAN Semiconductor Corporation
C5
C5
Table 43: SPI Command Description
HI Z
Description
Read data starting at ADDR. The ADDR will auto-increment until PCSZ
is raised. Upon completion:
No MPU interrupt is generated if the command is 1100 0000. Other-
wise, an SPI interrupt is generated.
Write data starting at ADDR. The ADDR will auto-increment until PCSZ
is raised. Upon completion:
No MPU interrupt is generated if the command is 1000 0000. Other-
wise, an SPI interrupt is generated.
C0
C0
7
7
SP__CMD=11xx xxxx, SP_ADDR=ADDR+N+1.
SP_CMD=10xx xxxx, SP_ADDR=ADDR+N+1.
A15
A15
8
8
A14
A14
16 bit Address
16 bit Address
A1
A1
HI Z
A0
A0
23
23
D7
D7
24
24
x
D6
D6
DATA[ADDR]
DATA[ADDR]
D1
D1
31
31
D0
D0
D7
D7
32
32
Extended Read . . .
Extended Write . . .
FDS_6533_6534_004
D6
D6
DATA[ADDR+1]
DATA[ADDR+1]
D1
D1
D0
D0
39
39
v1.1
x