Nokia RH-9 Series Ccs Technical Documentation page 49

RH-9
CCS Technical Documentation System Module & UI
Memory Description
The 64-Mbit density flash with 16 bit data access operates in both asynchronous random
access and synchronous burst access (with crossing partition boundaries) and has various
data protection features. Upon power up or reset, the device defaults to asynchronous
read configuration. Synchronous burst read is indicated to the device by writing to the
flash configuration register and can be terminated by deactivating the device.
The device supports reads and in-system erase and program operations at Vcc=1.8 V
(Voltage range 1.7-1.9 V). Flashing at production is supported at Vpp=12 V (for limited
exposure length only).
The RH-9 project has two flash suppliers, Intel and AMD. Device operations are similar
for both suppliers, with some differences as described in the following sections. Depend-
ing on volume requirements and supplier capabilities, it is also possible that ST will be a
third supplier.
Issue 1 11/02 ãNokia Corporation Page 49