Renesas R61509V - Manual (Page 155)

R61509V Target Spec
Rev. 0.11 April 25, 2008, page 155 of 181
NVM Control
The R61509V incorporates 16-bit NVM for user’s use.
• 7 bits are for VCOM adjustment (VCM register value is stored).
• 8 bits are for UID.
• 1 bit is for a dummy bit.
To write, read and erase data from/to the NVM, follow the sequences below. Data on the NVM is loaded to
internal registers automatically when the sequences are performed.
• Power On reset
• Exit shutdown mode
Data stored in the NVM is retained permanently even if power supply is turned off.
Table 81
Operation mode Power supply voltage (TBD) Time (TBD) Remarks Temperature
(TBD)
VPP1 9.2V ±0.3V Write
VPP3A Open or AGND
Write period:
150ms
±50ms
- +20°C~+30C°
VPP1 9.2V ±0.3V Erase
VPP3A -9.2V ±0.3V
Erase period:
10ms
±1ms x n
time(s) (N ≤ 30, total
≤ 300ms)
Verify erase operation
at intervals of
10ms
±1ms.
+20°C~+30C°
VPP1 Open or AGND Except
Write/Erase
VPP3A Open or AGND
- - −40°C~+85C°
Note: NVM data rewrite (erase-write) operation should be performed up to 5 times per address.