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R0P7727TH003TRKE General Information Manual
5. Functional Blocks
5.1 PCMCIA
5.1.1 Block Description
Figure 5.1 shows the PCMCIA control block. As shown in Figure 5.1, the PCMCIA control block contains a
controller (MR-SHPC-01 V2-F from Marubun Corporation), a 68-pin PC card interface connector (CN3) and a
power supply controller IC (TPS2211DB from TI). This controller interfaces with the card(s) conforming to the
PC Card Standard 97 and has the following features:
(1) Internal memory windows (2 windows) and I/O window (one window)
(2) Card access timing adjustment function
(3) One-step read/write buffer
(4) Endian internal control circuit
(5) Support for 5.0V/3.3V cards
(6) External buffer not required
(7) Internal interrupt steering function
(8) Power-down function
(9) Internal suspend function
There are four kinds of controller interrupts (SIRQ3 to SIRQ0). It connects with IRQ4 of SH7727 as an
interruption of one. For details, refer to Marubun's MR-SHPC-01 V2-F Manual.
Marubun Homepage:
SH7727
/IRQ4
http://www.marubun.co.jp/en/index.html
Marubun PCMCIA
controller
System bus I/F
MR SHPC-01 V2
/SIRQ0
/SIRQ1
/SIRQ2
/SIRQ3
System VCC
+3.3V
Power supply
control circuit
+5.0V
(TPS2211DB)
Figure 5.1 PCMCIA Control Block
PC card bus I/F
Card VCC
/CVCC3
/CVCC5
CVPP0
CVPP1
CARD PW GOOD
VCC (+5.0V/+3.3V/0V)
VPP (+5.0V/+3.3V/0V)
22
Functional Blocks
Card slot
(CN3)
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