Specifications
ESS Technology, Inc. SAM0023-122898 29
ES1869 DATA SHEET
PNP CONFIGURATION AND REGISTERS
64, a3, c0, f3, e8, e5, 73, a8
c5, 61, 31, 19, f, 94, d9, 6f
a6, 52, 2a, 14, 99, 4f, b4, cb
f6, 7a, 3c, 8f, d4, f9, 7d, 3f
<config_address_low>, <config_address_high>
Register 25h, bits 6:5 = 1,1
65, a2, c1, f2, e9, e4, 72, a9
c4, 60, 30, 18, e, 95, d8, 6e
a7, 53, 2b, 15, 98, 4e, b5, ca
f7, 7b, 3d, 8e, d5, f8, 7c, 3e
<config_address_low>, <config_address_high>
CAUTION: When using the bypass key method of
address configuration, the address cannot be reliably
relocated without reissuing the bypass key. Writing directly
to Logical Device Number 0 register 60h to change the
configuration address is unreliable. Use the bypass key to
relocate the configuration address. Use this method for
the initial address configuration as well as any subsequent
change in the address configuration.
Card-Control Card-Level Registers (00h-07h)
Set RD_DATA Port (00h, R/W)
The PnP read port can be written only when the card is in
Isolation mode. It is reset low by hardware reset. It can be
read only from Configuration mode. Bits 1:0 of PnP read
port are always one.
Serial Isolation (01h, R)
Read-only in isolation state. Used to read the serial
identifier during card isolation process.
Config Control (02h, W)
Bit Definitions:
Wake[CSN] (03h, W)
If data written is 00h and it:
• matches the CSN:
this card goes from Sleep mode to Isolation mode.
• does not match the CSN:
this card goes from Configuration mode to Sleep mode.
If the data written is non-zero, and it:
• matches the CSN:
this card goes from Sleep mode to Configuration mode.
• does not match the CSN:
this card goes from Isolation mode to Sleep mode.
Bits 9:2 of the PnP RD_DATA port
7 6 5 4 3 2 1 0
Data
7 6 5 4 3 2 1 0
RESET_CSN WFK SWR
7 6 5 4 3 2 1 0
Bits Name Description
2 RESET_CSN RESET_CSN command.
1 = Card’s CSNs set to zero.
1 WFK WAIT_FOR_KEY command.
1 = Enter wait-for-key state.
0 SWR Software reset command. Does not work
in wait-for-key state.
1 = Reset config registers to default.
Data
7 6 5 4 3 2 1 0