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2
2.5 PCMCIA Card Interface
The SH7619 MCU mounted on the M3A-HS19 is compliant with the JEIDA 4.2 (PCMCIA2.1 Rev.2.1). However, only
3.3 V interface PC card is supported. An on-chip bus state controller (BSC) and a PFC control the PC card.
High byte and low byte of the data is switched at the bus switch on the M3A-HS19. When the byte order of the SH7619 is
big-endian, the order of the PC card connector is little-endian (IOIS16#: "L").
The M3A-HS19 is provided with a PCMCIA card slot in area 5, allowing both IC memory card and I/O card to be mounted.
Figure 2.5.1 shows the block diagram of PCMCIA card interface.
PC card connector (J4)
D15-D6
D5-D0
A25-A16
A15-A6
A5-A0
RESET
CE1#
CE2#
REG#
OE#
WE#
IORD#
IOWR#
CD1#
CD2#
WAIT#
IOIS16#
IREQ#
VS1#
VS2#
INPACK#
SPKR#
STSCHG#
VCC
Rev.1.01 Oct 28, .2008
REJ10J1351-0101
20-bit bus switch
1B[9:0]
10
6
2B[9:0]
20-bit bus switch
1B[9:0]
10
10
2B[9:0]
6
20-bit bus switch
1B[9:0]
4
2B[9:0]
4
3.3 V
x3
2
PCVCC
5.0 V
3.3 V
x5
PCMCIA
Power supply
circuit
PCVCC
Figure 2.5.1 PCMCIA Card Interface
1A[9:0]
10
6
2A[9:0]
1OE#
2OE#
1A[9:0]
10
2A[9:0]
10
1OE#
2OE#
6
1A[9:0]
10
4
2A[9:0]
8
4
1OE#
4
2OE#
JP2
JP1
Features and Specifications
2.5 PCMCIA Card Interface
SH7619 (U1)
D7-D0, D15, D14
D13-D8
A25-A16
A15-A6
A5-A0
PC09/RX_ER(GPIO)
CE2A#
CE1A#
PC14/COL
RD#
WE#
PB05/ICIORD#
PB06/ICIOWR#
PC15/CRS
PB0/WAIT#
PB1/IOIS16#
PD7/IRQ7
PC20/WOL
PB13/BS#
2-14
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