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71M6543F/71M6543G Data Sheet
Name
Location Rst Wk Dir
Description
RTM0[9:8]
RTM0[7:0]
RTM1[7:0]
RTM2[7:0]
RTM3[7:0]
SECURE
SLEEP
210D[1:0]
210E[7:0]
210F[7:0]
2110[7:0]
2111[7:0]
SFR B2[6]
28B2[7]
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W
R/W
W
Four RTM probes. Before each CE code pass, the values of these registers are serially
output on the RTM pin. The RTM registers are ignored when RTM_E = 0. Note that
RTM0 is 10 bits wide. The others assume the upper two bits are 00.
Inhibits erasure of page 0 and flash memory addresses above the beginning of CE code
as defined by CE_LCTN[6/5:0]. Also inhibits the reading of flash memory by external
devices (SPI or ICE port).
Puts the 71M6543 to sleep. Ignored if system power is present. The 71M6543 wakes
when the Wake timer times out, when push button is pushed, or when system power
returns.
SPI_CMD
SFR FD[7:0] –
–
R
SPI command. 8-bit command from the bus master.
SPI_E
SPI_SAFE
270C[4]
270C[3]
1
0
1
0
R/W
R/W
SPI port enable. Enables the SPI interface on pins SEGDIO36 – SEGDIO39. Requires
that LCD_MAP[36-39] = 0.
Limits SPI writes to SPI_CMD and a 16 byte region in DRAM. No other writes are
permitted.
SPI_STAT contains the status results from the previous SPI transaction
Bit 7 - 71M6543 ready error: the 71M6543 was not ready to read or write as directed by
the previous command.
Bit 6 - Read data parity: This bit is the parity of all bytes read from the 71M6543 in the
previous command. Does not include the SPI_STAT byte.
SPI_STAT
2708[7:0]
0
0
R
Bit 5 - Write data parity: This bit is the overall parity of the bytes written to the 71M6543
in the previous command. It includes CMD and ADDR bytes.
Bit 4:2 - Bottom 3 bits of the byte count. Does not include ADDR and CMD bytes.
One, two, and three byte instructions return 111.
Bit 1 - SPI FLASH mode: This bit is zero when the TEST pin is zero.
Bit 0 - SPI FLASH mode ready: Used in SPI FLASH mode. Indicates that the flash is ready to
receive another write instruction.
STEMP[10:3]
STEMP[2:0]
SUM_SAMPS[12:8]
SUM_SAMPS[7:0]
TBYTE_BUSY
TEMP_22[10:8]
TEMP_22[7:0]
2881[7:0]
2882[7:5]
2107[4:0]
2108[7:0]
28A0[3]
230A[2:0]
230B[7:0]
–
–
0
0
0
–
–
0
0
–
R
R
R/W
R
R
The result of the temperature measurement.
The number of multiplexer cycles (frames) per XFER_BUSY interrupt. Maximum value is
8191 cycles.
Indicates that hardware is still writing the 0x28A0 byte. Additional writes to this byte are
locked out while it is one. Write duration could be as long as 6 ms.
Storage location for STEMP[10:0] at 22C. STEMP[10:0] is an 11 bit word.
v2
113
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