PRELIMINARY BETA. NOT FOR REDISTRIBUTION.
The Hardware Book is freely distributable but is copyrighted to Joakim Ögren. It may not be modified and re-distributed without the authors permission.
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Chapter 1: Connector Menu Miniature Card (Tech) Connector
BUSY#
BUSY# is a signal generated by the card to indicate the status of operations within the
Miniature Card. When BUSY# is high, the Miniature Card is ready to accept the next
command from the host. When BUSY# is low, the Miniature Card is busy and unable to
accept some data operations from the host. For example, in Flash Miniature Cards the
BUSY# signal is tied to the components RY/BY# signal. However, ROM Miniature Cards
would always drive BUSY# high since the host will always be able to read from a ROM
Miniature Card.Vccr
Vccr provides a low current (refresh) voltage supply. Vccr is a feature used by DRAM
Miniature Cards to "self-refresh" during "sleep" mode.SDA
I2C: Serial Data/Address.
SCL
I2C: Serial Clock are used to read the attribute information structure (AIS) from the serial
EEPROM in a DRAM card.CD#
CD# is a grounded interface signal. After a Miniature Card has been inserted, CD# will be
forced low. The card detect signal is located in the center of the second row of interface
signals, and should be one of the last interface signals to connect to the host. Do not
confuse CD# with CINS#. CINS# is an early card detect that is one of the first signals to
connect to the host.BS8#
BS8# is a signal driven by the host to indicate if the data bus is x8 or x16. An 8-bit host must
drive BS8# low and tie the high byte data bus D[15:8] to the low byte data bus D[7:0]. A
16-bit host must drive this signal high.GND
Ground
Vcc
Vcc is used to supply power to the card.
CINS#
CINS# is a grounded signal on the front of the Miniature Card that can be used for early
detection of a card insertion. CINS# makes contact on the host when the front of the card is
inserted into the socket, before the interface signals connect.
Contributor: Joakim Ögren
Source: Minicature Card v1.1 spec <http://www.mcif.org/spec.html> at Miniature Card Implementers Forum's
homepage <http://www.mcif.org/spec.html>
Please send any comments to Joakim Ögren.