SM5902AF Datasheet, PDF (17/40 Pages) Nippon Precision Circuits Inc – compression and non compression type shock-proof memory controller

SM5902AF
Shock-proof memory valid data residual 92
Bit Name
S7 AM21
S6 AM20
S5 AM19
S4 AM18
S3 AM17
S2 AM16
S1 AM15
S0 AM14
M1 AM13
M2 AM12
M3 AM11
M4 AM10
M5 AM09
M6 AM08
M7 AM07
M8 AM06
92hex = 1001 0010
Function
Valid data accumulated VWA-RA (MSB) 8M bits
4M bits
2M bits
1M bits
512k bits
256k bits
128k bits
64k bits
32k bits
16k bits
8k bits
4k bits
2k bits
1k bits
512 bits
256 bits
Note. The time conversion factor varies depending on the compression bit mode.(M = 1,048,576 K= 1,024)
Residual time (sec) = Valid data residual (Mbits) × Time conversion value K
where the Time conversion value K (sec/Mbit) ≈ 2.78 (4 bits), 2.22 (5 bits), 1.85 (6 bits) and 0.74 (Full bits).
Extension I/O inputs 93
Input data entering (or output data from) an extension port terminal is echoed to the microcontroller.
(That is, the input data entering an I/O port configured as an input port using the 81H command,
OR the output data from a pin configured as an output port using the 82H command.)
Bit Name
Function
S7
S6
S5
S4 UC5RD
S3 UC4RD
S2 UC3RD
S1 UC2RD
S0 UC1RD
93hex = 1001 0011
HIGH-level state
NIPPON PRECISION CIRCUITS-17