Zilog Z86E07 User Manual
Page 40
5-3
C50 ICEBOX
U
SER
'
S
M
ANUAL
3.
All Z8
®
control registers are write only unless stated otherwise.
4.
Programming the ROM protect bit on all Z8s and Z8 OTPs will disable all use of the
LDC, LDCI, LDE, and LDEI instructions. Thus ROM protect does not support the use
of a ROM look-up table. The value must be loaded as “immediate values.”
5.
The special OTP programming options such as ROM protect, RAM protect, Low
Noise, and RC will be programmed if the option has been selected and the VERIFY
command was then executed.
6.
Power Supply ramp-up/rise time must be such that when minimum power on reset time
(T
POR
) expires then the V
cc
must be in the supported specified operating range of the
device.
7.
The bits of non-implemented features (of devices having a PCON register) must be set
to "1" state on the emulator.
8.
Check the T
POR
and T
WDT
specifications of the device that you wish to emulate. The
actual specification may differ from the ICE chip specifications.
9.
The general-purpose registers after Power-On Reset or at initial emulator use will be
different than the actual device. The emulator self test will always leave the same
values in the general-purpose registers, while the real device will have a random/
undefined value in the general-purpose registers.
Z86C03/06/09/16
1.
Devices with the comparator output feature have the P32 comparator output coming
out of P35.
2.
For Z86C03/06/09/16/19/30/31 and Z86E03/30/31, the register %F8 (P01M register)
bits D4 and D3 must be set to state 0 and bit D2 must be set to
state "1".
3.
WDT Register (F) %0F can only be written in the first 64 internal system clocks from
the start of program execution.
4.
The PCON register on Z86C16 is not reset after Stop-Mode Recovery.
Z86E04/E08/E07
1.
Z86E04 and Z86E08 have special features such that programming the ROM protect
mode will also put the device in Low EMI mode, where XTAL frequency = internal SCLK
and all output drive capabilities are reduced by 75%.
UM009701-0201