TC1796
System Units (Vol. 1 of 2)
Register Overview
User’s Manual 18-1 V2.0, 2007-07
Regs, V2.0
18 Register Overview
This chapter describes all registers of the TC1796 that are located is segment 15. It also
describes the read/write access rights of the specific address ranges/registers.
Throughout the tables in this chapter, the “Access Mode” “Read” and “Write”, and “Reset
Values” columns indicate access rights and values using symbols listed in Section 18-1.
Table 18-1 Address Map Symbols
Symbol Description
U Access Mode: Access permitted in User Mode 0 or 1.
Reset Value: Value or bit is not changed by a reset operation.
SV Access permitted in Supervisor Mode.
R Read-only register.
32 Only 32-bit word accesses are permitted to this register/address range.
E Endinit-protected register/address.
PW Password protected register/address.
NC No change, indicated register is not changed.
BE Indicates that an access to this address range generates a Bus Error.
nBE Indicates that no Bus Error is generated when accessing this address
range, even though it is either an access to an undefined address or the
access does not follow the given rules.
nE Indicates that no Error is generated when accessing this address or
address range, even though the access is to an undefined address or
address range. True for CPU accesses (MTCR/MFCR) to undefined
addresses in the CSFR range.
X Undefined value or bit.
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