Renesas R61509V - Manual (Page 157)

R61509V Target Spec
Rev. 0.11 April 25, 2008, page 157 of 181
NVM Write Sequence
Defined 16 bit data is written to the selected address. When “0” is written to these bits, the bits are set to
“0”. If the data is erased from the bit, the bit is returned to ”1”. The bit to which data is not written should
be set to “1”.
RS=0, DB=16’h0000
RS=0, DB=16’h0000
RS=0, DB=16’h0000
RS=0, DB=16’h0000
R6F1:16’h****
R6F0:16’h0010
(TE=0,CALB=0,EOP=2’h1)
R6F0:16’h0090
(TE=1,CALB=0,EOP=2’h1)
150ms r50ms(TBD)
GND
VPP1=9.2 r0.3V
VPP3A/VPP3B=GND
GND
VPP1=9.2 r0.3V
VPP3A =GND
6F0h:16’h0040
(CALB=1)
NVM Write Sequence
NVM Load (Register Resetting) Sequence
1ms
or more
Power ON reset
Transfer synchronization
2msec
or more
1msec
or more
1msec
or more
NVM write setting
NVM write start
NVM write end
Power supply (VCC, VCI, IOVCC) ON
NVM write data set
1us
or more
(NVDAT=16’hXX (arbitrary data))
RA0: 16’h0000
(TE=0, EOP=2’h0,
NVAD=2’h0)
NVM load end
NVM load
(Automatically CALB = 0)
NVM data read
R280h: VCM[6:0], UID[7:0]
Instruction read
Figure 67 NVM Write Sequence