Lenovo ThinkPad 770X Technical Reference Manual for the ThinkPad 770 - Page 69

PCMCIA Subsystem, The Type I and Type II PC cards can

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PCMCIA Subsystem The system board has two PCMCIA (Personal Computer Memory Card International Association) slots that support the following types of PC Card: 16 bit PC Card Type-I, II, III 5V, 3.3V 32 bit PC Card Type-I, II, III 5V, 3.3V However, x.xV, y.yV, DMA, and ZV are not supported. The maximum current allowable for both slots at the same time is: 1.0 A at 5 V dc 0.8 A at 3.3 V dc 0.1 A at 12 V dc The PCI1250 PCI-to-Cardbus Controller Unit2 is used as the PC card controller in the system unit. The available interrupt levels are IRQ 3, 4, 5, 7, 9, 10, 11, 14, and 15. The system unit resumes operation from suspend mode when it receives the 'RI_OUT' signal. The Type I and Type II PC cards can be installed into either the upper or the lower slot, or into both slots at the same time. The Type III PC card, however, must be installed only in the lower slot. The Type II PC card cannot be used in the upper slot when a Type III PC card is used. The PCMCIA slots are designed according to the PC Card standard made in February 1995. 2 Manufactured by Texas Instruments corporation. Subsystems 3-11

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PCMCIA Subsystem
The system board has two PCMCIA (Personal Computer Memory
Card International Association) slots that support the following types
of PC Card:
±
16 bit PC Card Type–I, II, III 5V, 3.3V
±
32 bit PC Card Type–I, II, III 5V, 3.3V
However, x.xV, y.yV, DMA, and ZV are not supported.
The maximum current allowable for both slots at the same time is:
±
1.0 A at 5 V dc
±
0.8 A at 3.3 V dc
±
0.1 A at 12 V dc
The PCI1250 PCI-to-Cardbus Controller Unit
2
is used as the PC card
controller in the system unit.
The available interrupt levels are IRQ
3, 4, 5, 7, 9, 10, 11, 14, and 15.
The system unit resumes operation from suspend mode when it
receives the ‘RI_OUT’ signal.
The Type I and Type II PC cards can
be installed into either the upper or the lower slot, or into both slots
at the same time.
The Type III PC card, however, must be installed
only in the lower slot.
The Type II PC card cannot be used in the
upper slot when a Type III PC card is used.
The PCMCIA slots are designed according to the PC Card standard
made in February 1995.
2
Manufactured by Texas Instruments corporation.
Subsystems
3-11