Memory; Rom; Ram - Vadem Clio Service Manual

CLIO Theory of Operation
*=standard CLIO setup
1.3. M
EMORY
CLIO contains two memory modules: one each ROM and RAM.
1.3.1.

ROM

CLIO supports a single custom ROM module which can house 24MB or 32MB of Mask ROM
or 8MB or 16MB of Flash ROM. The ROM module mounts on the main board in a user-
friendly fashion, and is distinguishable from the RAM module due to its offset connectors.
ROM's run on 3.3V.
The ROM types used are as follows:
Flash ROM: 32 Mbit, 32 bit wide, 3.3V/5V, 60ns/120ns
Mask ROM: 64 Mbit, 32 bit wide, 3.3V, page mode, 100ns/30ns
To upgrade the ROM module, use the following procedure:
1. Backup or synchronize CLIO by docking the unit and using H/PC Explorer tools.
2. Remove main battery and AC power.
3. Remove and discard the old ROM set.
4. Install the new ROM set.
5. Replace battery and (optionally) AC power.
6. Perform a hard reset.
7. Power on unit.
8. Restore from backup.
1.3.2.

RAM

CLIO supports a single custom RAM module which can house 16MB or 32MB of EDO RAM.
The RAM module mounts on the main board in a user-friendly fashion. The RAM type used
is 64Mbit EDO RAM, 16 bits wide, 3.3V, 60ns, self-refresh.
To upgrade the RAM module, use the following procedure:
1.
Backup or synchronize CLIO by docking the unit and using H/PC Explorer tools.
The information contained in this document is confidential and the sole property of Vadem Inc. Written
permission must be obtained to reprint or use any of this information.
AUTHORED BY ANTHONY HERNANDEZ - (415)786-2081 - anthonyh@ashlandhome.net
CLKSEL [2 . . 0] CPU Core Freq.
101 84.1MHz
110 90.6MHz
111 98.1MHz
1-2
Theory of Operation
BUSCLK Freq.
7.01
5.67
6.13